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About This Presentation
Indian standard for prestressing strand tests
Slide Content
iw iw oZ oZ iz iz frcf frcfyr yr oa oa QØhV QØhV osos Q f Q fy, y, ruko ruko
jfgr jfgr de de f'kff'kfFkyu Fkyu okysokys vysfir vysfir
lkr lkr -- Iykb IykbZZ os os Q L Q LVªVª S S a a M M — — fof' fof'kf"V kf"V
((igigyk yk iqiqujujh{h{k.k.kk))
Uncoated Stress Relieved LowUncoated Stress Relieved Low
Relaxation Seven-Wire (Ply)Relaxation Seven-Wire (Ply)
Strand for PrestressedStrand for Prestressed
ConConcretecrete— S— Specipecificaficationtion
((FiFirsrst t ReRevivisisionon))
ICS 77.140.15; 91.080.40ICS 77.140.15; 91.080.40
IS 14268 : 2017IS 14268 : 2017
Hkkjrh; ekud Hkkjrh; ekud
Indian Standard Indian Standard
Price Group 5Price Group 5July 2017July 2017
Hkkjrh; ekud C;wjksHkkjrh; ekud C;wjks
B U R E B U R E A U A U O F O F I N D I A I N D I A N N S T S T A N D A N D A A R D SR D S
ekud ekud Hkou] Hkou] 9 9 cgknqj'kkg cgknqj'kkg T+kiQj T+kiQj ekxZ] ekxZ] ubZ ubZ fnYyh&110002 fnYyh&110002
MANAK BHAVAN, 9 BAHADUR SHAH ZAFAR MARGMANAK BHAVAN, 9 BAHADUR SHAH ZAFAR MARG
NEW DELHI-110002NEW DELHI-110002
www.bis.org.in www.standardsbis.inwww.bis.org.in www.standardsbis.in
© BIS 2017© BIS 2017
jfgr jfgr de de f'kff'kfFkyu Fkyu okysokys vysfir vysfir
lkr lkr -- Iykb IykbZZ os os Q L Q LVªVª S S a a M M — — fof' fof'kf"V kf"V
((igigyk yk iqiqujujh{h{k.k.kk))
Uncoated Stress Relieved LowUncoated Stress Relieved Low
Relaxation Seven-Wire (Ply)Relaxation Seven-Wire (Ply)
Strand for PrestressedStrand for Prestressed
ConConcretecrete— S— Specipecificaficationtion
((FiFirsrst t ReRevivisisionon))
ICS 77.140.15; 91.080.40ICS 77.140.15; 91.080.40
IS 14268 : 2017IS 14268 : 2017
Hkkjrh; ekud Hkkjrh; ekud
Indian Standard Indian Standard
Price Group 5Price Group 5July 2017July 2017
Hkkjrh; ekud C;wjksHkkjrh; ekud C;wjks
B U R E B U R E A U A U O F O F I N D I A I N D I A N N S T S T A N D A N D A A R D SR D S
ekud ekud Hkou] Hkou] 9 9 cgknqj'kkg cgknqj'kkg T+kiQj T+kiQj ekxZ] ekxZ] ubZ ubZ fnYyh&110002 fnYyh&110002
MANAK BHAVAN, 9 BAHADUR SHAH ZAFAR MARGMANAK BHAVAN, 9 BAHADUR SHAH ZAFAR MARG
NEW DELHI-110002NEW DELHI-110002
www.bis.org.in www.standardsbis.inwww.bis.org.in www.standardsbis.in
© BIS 2017© BIS 2017
Concrete Reinforcement Sectional Committee, CED 54Concrete Reinforcement Sectional Committee, CED 54
FOREWORDFOREWORD
This Indian Standard (First Revision) was adopted by the Bureau of Indian Standards, after the draft finalized byThis Indian Standard (First Revision) was adopted by the Bureau of Indian Standards, after the draft finalized by
the Concrete Reinforcement Sectional Committthe Concrete Reinforcement Sectional Committee had been approved by the Civil Engineering Division Council.ee had been approved by the Civil Engineering Division Council.
The standard was published in 1995 to cover the requiremenThe standard was published in 1995 to cover the requirements of low relaxation seven-ply strands for prts of low relaxation seven-ply strands for prestressedestressed
concrete. These types of strands are capable of developing and retaining large concentrated prestressing forces.concrete. These types of strands are capable of developing and retaining large concentrated prestressing forces.
The low relaxation property is achieved by a process called ‘stabilising’. This is essentially a hot stretchingThe low relaxation property is achieved by a process called ‘stabilising’. This is essentially a hot stretching
process, in which prestressing strand is subjected to a process, in which prestressing strand is subjected to a pre-determined tension during stress-relievpre-determined tension during stress-relieving heat treatment.ing heat treatment.
This results in linear hardening of the steel which substantially increases the resistance to creep and therebyThis results in linear hardening of the steel which substantially increases the resistance to creep and thereby
reduces the relaxation losses.reduces the relaxation losses.
This revision has been taken up with a view of incorporating modifications found necessary as a result of use of This revision has been taken up with a view of incorporating modifications found necessary as a result of use of
this standard both by the manufacturers and the users. Time and again strand biting during tensile testing of this standard both by the manufacturers and the users. Time and again strand biting during tensile testing of
strands have been reported on account of using improper gripping arrangements. In order to ensure that thestrands have been reported on account of using improper gripping arrangements. In order to ensure that the
criticality of proper gripping of strand to get correct test results is understood and applied by the industry, a needcriticality of proper gripping of strand to get correct test results is understood and applied by the industry, a need
was felt to take up revision of the standard suggesting various gripping procedures and methods for minimizingwas felt to take up revision of the standard suggesting various gripping procedures and methods for minimizing
these difficulties. In this revision, following modifications have been incorporated:these difficulties. In this revision, following modifications have been incorporated:
a)a)MethMethod for meaod for measuresurement oment of lengtf length of lay of strh of lay of strand haand has been ins been incorpcorporatorated,ed,
b)b)Method foMethod for measurr measurement of noement of nominal diaminal diameter anmeter and differed difference in diamnce in diameter of ceeter of central wire antral wire and surround surroundingnding
wire of strand has been incorporated,wire of strand has been incorporated,
c)c)Method foMethod for determir determining nomining nominal crosnal cross-sectios-sectional area nal area and nomiand nominal mass nal mass per unit per unit length of length of strand hastrand hass
been incorporated,been incorporated,
d)d)1.0 perce1.0 percent extennt extension methsion method for deod for determining termining elongatioelongation has ben has been elaben elaborated to orated to provide provide more clarimore clarity,ty,
e)e)Methods Methods to be to be adopted adopted for minimfor minimizing diizing difficulties fficulties of premaof premature faiture failure of lure of the testhe test spect specimens wimens whilehile
conducting mechanical tests on strands have been incorporated, andconducting mechanical tests on strands have been incorporated, and
f)f)VariVarious metous methods of grhods of grippiipping have beng have been suggen suggesteested for tensd for tensile tesile testing of stting of strandrands.s.
In the formulation of this standard, due weightage has been given to international coordination among the standardsIn the formulation of this standard, due weightage has been given to international coordination among the standards
and practices prevailing in different countries in addition to relating it to the practices in the field in this country.and practices prevailing in different countries in addition to relating it to the practices in the field in this country.
Assistance has been derived from the following International Standards in the formulation of this standard:Assistance has been derived from the following International Standards in the formulation of this standard:
ISO 6934-1 : 19ISO 6934-1 : 199191Steel fSteel for the preor the prestresstressing of csing of concretoncrete — Part 1: Ge — Part 1: General eneral requirerequirementsments
ISO 6934ISO 6934-4 : 1991-4 : 1991Steel Steel for the for the prestrprestressinessing of cog of concrete ncrete — Part 4— Part 4: Stran: Strandd
Provisions in this standard are at variance with similar provisioProvisions in this standard are at variance with similar provisions in the above international standards, in view of ns in the above international standards, in view of
the following:the following:
a)a)GeographiGeographical factocal factors which rs which determine determine the earththe earthquake zoquake zoning and ning and consequeconsequently the ntly the structurastructural designl design
considerations, structural design method/principles adopted, the design parameters and required matericonsiderations, structural design method/principles adopted, the design parameters and required materialal
properties;properties;
b)b)TechnologTechnological factoical factors assocrs associated with iated with the procethe process of manuss of manufacture of tfacture of the producthe product, which inf, which influence thluence thee
product characteristics; andproduct characteristics; and
c)c)ConstructConstruction technion techniques and iques and practicepractices adopted s adopted in the couin the country, the entry, the equipment uquipment used and tsed and the skill lhe skill level of evel of
construction workers which also influence the product characteristics.construction workers which also influence the product characteristics.
((Continued Continued on third cover on third cover ))
FOREWORDFOREWORD
This Indian Standard (First Revision) was adopted by the Bureau of Indian Standards, after the draft finalized byThis Indian Standard (First Revision) was adopted by the Bureau of Indian Standards, after the draft finalized by
the Concrete Reinforcement Sectional Committthe Concrete Reinforcement Sectional Committee had been approved by the Civil Engineering Division Council.ee had been approved by the Civil Engineering Division Council.
The standard was published in 1995 to cover the requiremenThe standard was published in 1995 to cover the requirements of low relaxation seven-ply strands for prts of low relaxation seven-ply strands for prestressedestressed
concrete. These types of strands are capable of developing and retaining large concentrated prestressing forces.concrete. These types of strands are capable of developing and retaining large concentrated prestressing forces.
The low relaxation property is achieved by a process called ‘stabilising’. This is essentially a hot stretchingThe low relaxation property is achieved by a process called ‘stabilising’. This is essentially a hot stretching
process, in which prestressing strand is subjected to a process, in which prestressing strand is subjected to a pre-determined tension during stress-relievpre-determined tension during stress-relieving heat treatment.ing heat treatment.
This results in linear hardening of the steel which substantially increases the resistance to creep and therebyThis results in linear hardening of the steel which substantially increases the resistance to creep and thereby
reduces the relaxation losses.reduces the relaxation losses.
This revision has been taken up with a view of incorporating modifications found necessary as a result of use of This revision has been taken up with a view of incorporating modifications found necessary as a result of use of
this standard both by the manufacturers and the users. Time and again strand biting during tensile testing of this standard both by the manufacturers and the users. Time and again strand biting during tensile testing of
strands have been reported on account of using improper gripping arrangements. In order to ensure that thestrands have been reported on account of using improper gripping arrangements. In order to ensure that the
criticality of proper gripping of strand to get correct test results is understood and applied by the industry, a needcriticality of proper gripping of strand to get correct test results is understood and applied by the industry, a need
was felt to take up revision of the standard suggesting various gripping procedures and methods for minimizingwas felt to take up revision of the standard suggesting various gripping procedures and methods for minimizing
these difficulties. In this revision, following modifications have been incorporated:these difficulties. In this revision, following modifications have been incorporated:
a)a)MethMethod for meaod for measuresurement oment of lengtf length of lay of strh of lay of strand haand has been ins been incorpcorporatorated,ed,
b)b)Method foMethod for measurr measurement of noement of nominal diaminal diameter anmeter and differed difference in diamnce in diameter of ceeter of central wire antral wire and surround surroundingnding
wire of strand has been incorporated,wire of strand has been incorporated,
c)c)Method foMethod for determir determining nomining nominal crosnal cross-sectios-sectional area nal area and nomiand nominal mass nal mass per unit per unit length of length of strand hastrand hass
been incorporated,been incorporated,
d)d)1.0 perce1.0 percent extennt extension methsion method for deod for determining termining elongatioelongation has ben has been elaben elaborated to orated to provide provide more clarimore clarity,ty,
e)e)Methods Methods to be to be adopted adopted for minimfor minimizing diizing difficulties fficulties of premaof premature faiture failure of lure of the testhe test spect specimens wimens whilehile
conducting mechanical tests on strands have been incorporated, andconducting mechanical tests on strands have been incorporated, and
f)f)VariVarious metous methods of grhods of grippiipping have beng have been suggen suggesteested for tensd for tensile tesile testing of stting of strandrands.s.
In the formulation of this standard, due weightage has been given to international coordination among the standardsIn the formulation of this standard, due weightage has been given to international coordination among the standards
and practices prevailing in different countries in addition to relating it to the practices in the field in this country.and practices prevailing in different countries in addition to relating it to the practices in the field in this country.
Assistance has been derived from the following International Standards in the formulation of this standard:Assistance has been derived from the following International Standards in the formulation of this standard:
ISO 6934-1 : 19ISO 6934-1 : 199191Steel fSteel for the preor the prestresstressing of csing of concretoncrete — Part 1: Ge — Part 1: General eneral requirerequirementsments
ISO 6934ISO 6934-4 : 1991-4 : 1991Steel Steel for the for the prestrprestressinessing of cog of concrete ncrete — Part 4— Part 4: Stran: Strandd
Provisions in this standard are at variance with similar provisioProvisions in this standard are at variance with similar provisions in the above international standards, in view of ns in the above international standards, in view of
the following:the following:
a)a)GeographiGeographical factocal factors which rs which determine determine the earththe earthquake zoquake zoning and ning and consequeconsequently the ntly the structurastructural designl design
considerations, structural design method/principles adopted, the design parameters and required matericonsiderations, structural design method/principles adopted, the design parameters and required materialal
properties;properties;
b)b)TechnologTechnological factoical factors assocrs associated with iated with the procethe process of manuss of manufacture of tfacture of the producthe product, which inf, which influence thluence thee
product characteristics; andproduct characteristics; and
c)c)ConstructConstruction technion techniques and iques and practicepractices adopted s adopted in the couin the country, the entry, the equipment uquipment used and tsed and the skill lhe skill level of evel of
construction workers which also influence the product characteristics.construction workers which also influence the product characteristics.
((Continued Continued on third cover on third cover ))
11
IS 14268 : 2017IS 14268 : 2017
Indian Stand Indian Standard ard
UNCOATED STRESS RELIEVED LOW RELAXATIONUNCOATED STRESS RELIEVED LOW RELAXATION
SEVEN-WIRE (PLY) STRAND FOR PRESTRESSEDSEVEN-WIRE (PLY) STRAND FOR PRESTRESSED
CONCRETE — SPECIFICATIONCONCRETE — SPECIFICATION
((FFiirrssttRReevviissiioonn))
1 SCOPE1 SCOPE
This standard covers the requirements for This standard covers the requirements for manufacture,manufacture,
supply and testing of uncoated, stress relieved, lowsupply and testing of uncoated, stress relieved, low
relaxation seven-wire (ply) steel strands for relaxation seven-wire (ply) steel strands for prestressedprestressed
concrete.concrete.
2 REFERENCES2 REFERENCES
The standards listed below contain provisions, whichThe standards listed below contain provisions, which
through reference in this text constitute provisions of through reference in this text constitute provisions of
this standard. At the time of publication, the editionsthis standard. At the time of publication, the editions
indicated were valid. All standards are subject toindicated were valid. All standards are subject to
revision, and parties to agreements based on thisrevision, and parties to agreements based on this
standard are encouraged to investigate the possibilitystandard are encouraged to investigate the possibility
of applying the most recent editions of the standardsof applying the most recent editions of the standards
listed below:listed below:
IS No. IS No. TitleTitle
222288 MMeetthhoodds s oof f cchheemmiiccaal l aannaallyyssiis s oof f sstteeeell::
(P(Parart t 3)3)::19198787DetDetermerminainatiotion of n of phophosphsphoruorus bys by
alkalimetric method (alkalimetric method (third revisionthird revision))
(Pa(Part rt 9) 9) : : 19819899DetermiDetermination of sulphnation of sulphur in plainur in plain
carbon steel by evaluation methodcarbon steel by evaluation method
(For sulphur 0.01 to 0.25 percent)(For sulphur 0.01 to 0.25 percent)
((third revisionthird revision))
1313887 : 197 : 199393 GeGeneneraral rl reeququirirememenents ts fofor tr the he susupppplyly
of metallurgical materials (of metallurgical materials (second second
revisionrevision))
161608 08 : 2: 2000055 MeMetatallllic ic mamateteririalals s — — TeTensnsilile e teteststiningg
at ambient temperature (at ambient temperature (third third
revisionrevision))
11995566 GGlloossssaarry y oof f tteerrmms s rreellaattiinng g tto o iirroon n aanndd
steel:steel:
(Pa(Part 1rt 1) : ) : 19719766GenGeneraeral l metmetallallurgyurgy, , heaheat t treatreatmentmentt
and testing (and testing ( first revision first revision))
(P(Parart 2) t 2) : 19: 197676StSteeeel ml makakining (g ( first revision first revision))
(Part (Part 3) : 3) : 19751975Hot Hot rolled rolled steel steel producproducts ts (exclu(excludingding
sheet and strip) (sheet and strip) ( first revision first revision))
(Pa(Part 5rt 5) : 1) : 1976976BriBright sght steeteel bar anl bar and sted steel wiel wire (re ( first first
revisionrevision))
3 TERMINOLOGY3 TERMINOLOGY
For the purpose of this standard, the definitions givenFor the purpose of this standard, the definitions given
in IS 1956 (Part 1), IS 1956 (Part 2), IS 1956 (Part 3)in IS 1956 (Part 1), IS 1956 (Part 2), IS 1956 (Part 3)
and IS 1956 (Part 5), and the following shall apply.and IS 1956 (Part 5), and the following shall apply.
3.1 3.1 Breaking Breaking LoadLoad — The maximum load reached — The maximum load reached
in a tensile test of the strand.in a tensile test of the strand.
3.2 3.2 Coil Coil or or ReelReel— One continuous length of strand— One continuous length of strand
in the form of a coil or reel.in the form of a coil or reel.
3.3 Elongation3.3 Elongation— The increase in length of a tensile— The increase in length of a tensile
test piece under stress. In case of test piece under stress. In case of strands, the elongationstrands, the elongation
is measured immediately prior to fracture of any of is measured immediately prior to fracture of any of
the component-wirthe component-wires and is expressed as es and is expressed as the percentagethe percentage
of the original gauge length of a strand test piece.of the original gauge length of a strand test piece.
3.4 3.4 Length Length of of LayLay— The distance (measured along— The distance (measured along
a straight line parallel to the strand) in which a wirea straight line parallel to the strand) in which a wire
forms one complete helix.forms one complete helix.
3.5 Parcel3.5 Parcel— Any quantity of finished strand— Any quantity of finished strand
presented for examination and test at any one time.presented for examination and test at any one time.
3.6 3.6 Production Production LengthLength— The maximum length of — The maximum length of
strand which can be manufactured, with or withoutstrand which can be manufactured, with or without
welds, being made after drawing, in any of itswelds, being made after drawing, in any of its
component wire.component wire.
3.7 3.7 Proof Proof LoadLoad— The load which produces a — The load which produces a residualresidual
strain of 0.2 percent of the original gauge length (nonstrain of 0.2 percent of the original gauge length (non--
proportional elongation).proportional elongation).
3.8 3.8 Seven-Wire Seven-Wire (Ply) (Ply) StrandStrand— Any length of — Any length of
finished material which comprises six wires (plies)finished material which comprises six wires (plies)
formed together in helical form around a central wire.formed together in helical form around a central wire.
4 MANUFACTURE4 MANUFACTURE
4.1 Wire4.1 Wire
4.1.14.1.1The base metal shall be carbon steel of suchThe base metal shall be carbon steel of such
quality that when drawn to wire, fabricated into strandquality that when drawn to wire, fabricated into strand
and then stress relieved, shall have the properties andand then stress relieved, shall have the properties and
characteristics prescribed in this standard.characteristics prescribed in this standard.
4.1.24.1.2The element wire to be used for strand shall beThe element wire to be used for strand shall be
cold-drawn from plain carbon steel (cold-drawn from plain carbon steel (seesee4.1.14.1.1) and shall) and shall
contain not more than 0.040 percent sulphur and notcontain not more than 0.040 percent sulphur and not
more than 0.040 percent of phosphorus, when testedmore than 0.040 percent of phosphorus, when tested
in accordance with IS 228 (Part 9) and IS 228 (Part 3),in accordance with IS 228 (Part 9) and IS 228 (Part 3),
respectively.respectively.
4.1.34.1.3The wire used in the manufacture of the strandThe wire used in the manufacture of the strand
shall be well and cleanly drawn to the specifiedshall be well and cleanly drawn to the specified
dimensions and shall be sound and free from splits,dimensions and shall be sound and free from splits,
surface flaws, piping and any other defect likely tosurface flaws, piping and any other defect likely to
IS 14268 : 2017IS 14268 : 2017
Indian Stand Indian Standard ard
UNCOATED STRESS RELIEVED LOW RELAXATIONUNCOATED STRESS RELIEVED LOW RELAXATION
SEVEN-WIRE (PLY) STRAND FOR PRESTRESSEDSEVEN-WIRE (PLY) STRAND FOR PRESTRESSED
CONCRETE — SPECIFICATIONCONCRETE — SPECIFICATION
((FFiirrssttRReevviissiioonn))
1 SCOPE1 SCOPE
This standard covers the requirements for This standard covers the requirements for manufacture,manufacture,
supply and testing of uncoated, stress relieved, lowsupply and testing of uncoated, stress relieved, low
relaxation seven-wire (ply) steel strands for relaxation seven-wire (ply) steel strands for prestressedprestressed
concrete.concrete.
2 REFERENCES2 REFERENCES
The standards listed below contain provisions, whichThe standards listed below contain provisions, which
through reference in this text constitute provisions of through reference in this text constitute provisions of
this standard. At the time of publication, the editionsthis standard. At the time of publication, the editions
indicated were valid. All standards are subject toindicated were valid. All standards are subject to
revision, and parties to agreements based on thisrevision, and parties to agreements based on this
standard are encouraged to investigate the possibilitystandard are encouraged to investigate the possibility
of applying the most recent editions of the standardsof applying the most recent editions of the standards
listed below:listed below:
IS No. IS No. TitleTitle
222288 MMeetthhoodds s oof f cchheemmiiccaal l aannaallyyssiis s oof f sstteeeell::
(P(Parart t 3)3)::19198787DetDetermerminainatiotion of n of phophosphsphoruorus bys by
alkalimetric method (alkalimetric method (third revisionthird revision))
(Pa(Part rt 9) 9) : : 19819899DetermiDetermination of sulphnation of sulphur in plainur in plain
carbon steel by evaluation methodcarbon steel by evaluation method
(For sulphur 0.01 to 0.25 percent)(For sulphur 0.01 to 0.25 percent)
((third revisionthird revision))
1313887 : 197 : 199393 GeGeneneraral rl reeququirirememenents ts fofor tr the he susupppplyly
of metallurgical materials (of metallurgical materials (second second
revisionrevision))
161608 08 : 2: 2000055 MeMetatallllic ic mamateteririalals s — — TeTensnsilile e teteststiningg
at ambient temperature (at ambient temperature (third third
revisionrevision))
11995566 GGlloossssaarry y oof f tteerrmms s rreellaattiinng g tto o iirroon n aanndd
steel:steel:
(Pa(Part 1rt 1) : ) : 19719766GenGeneraeral l metmetallallurgyurgy, , heaheat t treatreatmentmentt
and testing (and testing ( first revision first revision))
(P(Parart 2) t 2) : 19: 197676StSteeeel ml makakining (g ( first revision first revision))
(Part (Part 3) : 3) : 19751975Hot Hot rolled rolled steel steel producproducts ts (exclu(excludingding
sheet and strip) (sheet and strip) ( first revision first revision))
(Pa(Part 5rt 5) : 1) : 1976976BriBright sght steeteel bar anl bar and sted steel wiel wire (re ( first first
revisionrevision))
3 TERMINOLOGY3 TERMINOLOGY
For the purpose of this standard, the definitions givenFor the purpose of this standard, the definitions given
in IS 1956 (Part 1), IS 1956 (Part 2), IS 1956 (Part 3)in IS 1956 (Part 1), IS 1956 (Part 2), IS 1956 (Part 3)
and IS 1956 (Part 5), and the following shall apply.and IS 1956 (Part 5), and the following shall apply.
3.1 3.1 Breaking Breaking LoadLoad — The maximum load reached — The maximum load reached
in a tensile test of the strand.in a tensile test of the strand.
3.2 3.2 Coil Coil or or ReelReel— One continuous length of strand— One continuous length of strand
in the form of a coil or reel.in the form of a coil or reel.
3.3 Elongation3.3 Elongation— The increase in length of a tensile— The increase in length of a tensile
test piece under stress. In case of test piece under stress. In case of strands, the elongationstrands, the elongation
is measured immediately prior to fracture of any of is measured immediately prior to fracture of any of
the component-wirthe component-wires and is expressed as es and is expressed as the percentagethe percentage
of the original gauge length of a strand test piece.of the original gauge length of a strand test piece.
3.4 3.4 Length Length of of LayLay— The distance (measured along— The distance (measured along
a straight line parallel to the strand) in which a wirea straight line parallel to the strand) in which a wire
forms one complete helix.forms one complete helix.
3.5 Parcel3.5 Parcel— Any quantity of finished strand— Any quantity of finished strand
presented for examination and test at any one time.presented for examination and test at any one time.
3.6 3.6 Production Production LengthLength— The maximum length of — The maximum length of
strand which can be manufactured, with or withoutstrand which can be manufactured, with or without
welds, being made after drawing, in any of itswelds, being made after drawing, in any of its
component wire.component wire.
3.7 3.7 Proof Proof LoadLoad— The load which produces a — The load which produces a residualresidual
strain of 0.2 percent of the original gauge length (nonstrain of 0.2 percent of the original gauge length (non--
proportional elongation).proportional elongation).
3.8 3.8 Seven-Wire Seven-Wire (Ply) (Ply) StrandStrand— Any length of — Any length of
finished material which comprises six wires (plies)finished material which comprises six wires (plies)
formed together in helical form around a central wire.formed together in helical form around a central wire.
4 MANUFACTURE4 MANUFACTURE
4.1 Wire4.1 Wire
4.1.14.1.1The base metal shall be carbon steel of suchThe base metal shall be carbon steel of such
quality that when drawn to wire, fabricated into strandquality that when drawn to wire, fabricated into strand
and then stress relieved, shall have the properties andand then stress relieved, shall have the properties and
characteristics prescribed in this standard.characteristics prescribed in this standard.
4.1.24.1.2The element wire to be used for strand shall beThe element wire to be used for strand shall be
cold-drawn from plain carbon steel (cold-drawn from plain carbon steel (seesee4.1.14.1.1) and shall) and shall
contain not more than 0.040 percent sulphur and notcontain not more than 0.040 percent sulphur and not
more than 0.040 percent of phosphorus, when testedmore than 0.040 percent of phosphorus, when tested
in accordance with IS 228 (Part 9) and IS 228 (Part 3),in accordance with IS 228 (Part 9) and IS 228 (Part 3),
respectively.respectively.
4.1.34.1.3The wire used in the manufacture of the strandThe wire used in the manufacture of the strand
shall be well and cleanly drawn to the specifiedshall be well and cleanly drawn to the specified
dimensions and shall be sound and free from splits,dimensions and shall be sound and free from splits,
surface flaws, piping and any other defect likely tosurface flaws, piping and any other defect likely to
22
IS 14268 : 2017IS 14268 : 2017
impair its use in the manufacture of the strand and theimpair its use in the manufacture of the strand and the
performance of the strand in prestressed concrete.performance of the strand in prestressed concrete.
4.2 Strand4.2 Strand
The seven-wires (plies) strand shall have a centre wireThe seven-wires (plies) strand shall have a centre wire
at least 1.5 percent greater in diameter than theat least 1.5 percent greater in diameter than the
surrounding wires enclosed tightly by six helicallysurrounding wires enclosed tightly by six helically
placed outer wires with a uniform length of lay of atplaced outer wires with a uniform length of lay of at
least 12 times but not more than 16 timeleast 12 times but not more than 16 times of the nominals of the nominal
diameter of the strand. The wires in the strand shall bediameter of the strand. The wires in the strand shall be
so formed that they shall not fly out of position whenso formed that they shall not fly out of position when
the strand is cut without seizing.the strand is cut without seizing.The length of lay of The length of lay of
strand, nominal diameter of seven-wire (ply) strandstrand, nominal diameter of seven-wire (ply) strand
and percentage difference in diameter of centre wireand percentage difference in diameter of centre wire
and surrounding wire of seven-wire (ply) strand shalland surrounding wire of seven-wire (ply) strand shall
be measured in accordance with the method given inbe measured in accordance with the method given in
Annex A.Annex A.
4.3 Joints4.3 Joints
4.3.14.3.1There shall be no strand joints or strand splicesThere shall be no strand joints or strand splices
in any length of the completed strand unless specificallyin any length of the completed strand unless specifically
permitted by the purchaser.permitted by the purchaser.
4.3.24.3.2During process of manufacture of individualDuring process of manufacture of individual
wires for stranding, welding is permitted only prior towires for stranding, welding is permitted only prior to
or at the time of last heat treatment.or at the time of last heat treatment.
4.3.34.3.3During fabrication of the During fabrication of the seven-wire (ply) strand,seven-wire (ply) strand,
butt-welded joints may be made in butt-welded joints may be made in the individual wires,the individual wires,
provided there is not more than one such joint in anyprovided there is not more than one such joint in any
4545m section of thm section of the completed se completed strand.trand.
NOTE — When specifically ordered as weldless grade, aNOTE — When specifically ordered as weldless grade, a
product free of welds shall be supplied. When this grade isproduct free of welds shall be supplied. When this grade is
specified, no welds or joints arespecified, no welds or joints arepermitted except as detailedpermitted except as detailed
inin4.3.24.3.2..
4.4 4.4 Treatment of Treatment of StrandStrand
4.4.14.4.1After stranding, all strands shall be subjected toAfter stranding, all strands shall be subjected to
a continuous thermo-mechanical treatment to producea continuous thermo-mechanical treatment to produce
the prescribed mechanical properties.the prescribed mechanical properties.
4.4.24.4.2Temper colours that may result from the thermalTemper colours that may result from the thermal
operation are considered normal for the finishedoperation are considered normal for the finished
appearance of this strand.appearance of this strand.
4.4.34.4.3After thermo-mechanical treatment, the strandAfter thermo-mechanical treatment, the strand
shall be reformed into coils or wound on to reels,shall be reformed into coils or wound on to reels,
having core diameter of sufficient size and in any casehaving core diameter of sufficient size and in any case
not less than 600 mm to ensure that the strand will laynot less than 600 mm to ensure that the strand will lay
out straight.out straight.
4.5 4.5 Workmanship Workmanship and Fand Finishinish
The finished strand shall be uniform in diameter andThe finished strand shall be uniform in diameter and
shall be free from injuries, flaws and imperfections.shall be free from injuries, flaws and imperfections.
Slight rusting, provided it is not suffSlight rusting, provided it is not sufficient to cause pitsicient to cause pits
visible to the naked eye, shall not be a cause forvisible to the naked eye, shall not be a cause for
rejection.rejection.
5 CLASS5 CLASS
The strand shall be either Class 1 or ClThe strand shall be either Class 1 or Class 2 dependingass 2 depending
on the breaking strength of the stron the breaking strength of the strand given in Table 1.and given in Table 1.
6 6 DIMENSION, TODIMENSION, TO LERANCE, UNIT LERANCE, UNIT WEIGHTWEIGHT
AND PHYSICAL REQUIREMENTSAND PHYSICAL REQUIREMENTS
6.16.1The nominal diameter, tolerance, nominal cross-The nominal diameter, tolerance, nominal cross-
sectional area and nominal mass per unit length of thesectional area and nominal mass per unit length of the
strand shall be as given in Table 2.strand shall be as given in Table 2.
6.1.16.1.1 The nominal diameter of strand shall be measured The nominal diameter of strand shall be measured
across the crown of the wires and in accordance withacross the crown of the wires and in accordance with
the method given in Annex A.the method given in Annex A.
6.26.2Physical Physical RequiremRequirements oents or Mechr Mechanical anical PropertiesProperties
6.2.16.2.1GeneralGeneral
While conducting the tests for physical requirementsWhile conducting the tests for physical requirements
as specified inas specified in6.2.26.2.2 to to6.2.46.2.4, premature failure of the, premature failure of the
test specimens may result if there is any appreciabletest specimens may result if there is any appreciable
notching, cutting or bending of the specimen by thenotching, cutting or bending of the specimen by the
gripping devices of the testing machine. Errors ingripping devices of the testing machine. Errors in
testing may result if all the wires constituting the strandtesting may result if all the wires constituting the strand
Table 1 Physical PropertiesTable 1 Physical Properties
((ClausesClauses 5, 6.2.2.1, 6.2.2.2 5, 6.2.2.1, 6.2.2.2andand6.2.3)6.2.3)
SSll CCllaassss NNoommiinnaal l DDiiaa BBrreeaakkiinng g SSttrreennggtthh 00..2 2 PPeerrcceennt t PPrroooof f LLooaadd
NNoo.. oof f SSttrraanndd oof f SSttrraanndd ((990 0 PPeerrcceennt t oof f BBrreeaakkiinng g SSttrreennggtthh))
Min Min MinMin
mmmm kkNN kkggff kkNN kkggf f
((11)) ((22)) ((33)) ((44)) ((55)) ((66)) ((77))
ii)) 99..55 8899..00 9 9 007788 8800..11 8 8 117700
iiii)) 1111..11 112200..11 112 2 225500 110088..11 111 1 002266
iii)iii)
11
1122..77 116600..11 116 6 333300 114444..11 114 4 669988
iivv)) 1155..22 224400..22 224 4 550000 221166..22 222 2 005522
vv)) 99..55 110022..33 110 0 443344 9922..11 9 9 339944
vi)vi)
22
1111..11 113377..99 114 4 006655 112244..11 112 2 665588
vviiii)) 1122..77 118833..77 118 8 773377 116655..33 116 6 886600
vviiiiii)) 1155..22 226600..77 226 6 559922 223344..66 223 3 992299
NOTE — The modNOTE — The modulus of elastiulus of elasticity is to be tcity is to be taken as 195aken as 195±±10 kN/mm10 kN/mm
22
, unless otherwise indicated by the manufacturer., unless otherwise indicated by the manufacturer.
IS 14268 : 2017IS 14268 : 2017
impair its use in the manufacture of the strand and theimpair its use in the manufacture of the strand and the
performance of the strand in prestressed concrete.performance of the strand in prestressed concrete.
4.2 Strand4.2 Strand
The seven-wires (plies) strand shall have a centre wireThe seven-wires (plies) strand shall have a centre wire
at least 1.5 percent greater in diameter than theat least 1.5 percent greater in diameter than the
surrounding wires enclosed tightly by six helicallysurrounding wires enclosed tightly by six helically
placed outer wires with a uniform length of lay of atplaced outer wires with a uniform length of lay of at
least 12 times but not more than 16 timeleast 12 times but not more than 16 times of the nominals of the nominal
diameter of the strand. The wires in the strand shall bediameter of the strand. The wires in the strand shall be
so formed that they shall not fly out of position whenso formed that they shall not fly out of position when
the strand is cut without seizing.the strand is cut without seizing.The length of lay of The length of lay of
strand, nominal diameter of seven-wire (ply) strandstrand, nominal diameter of seven-wire (ply) strand
and percentage difference in diameter of centre wireand percentage difference in diameter of centre wire
and surrounding wire of seven-wire (ply) strand shalland surrounding wire of seven-wire (ply) strand shall
be measured in accordance with the method given inbe measured in accordance with the method given in
Annex A.Annex A.
4.3 Joints4.3 Joints
4.3.14.3.1There shall be no strand joints or strand splicesThere shall be no strand joints or strand splices
in any length of the completed strand unless specificallyin any length of the completed strand unless specifically
permitted by the purchaser.permitted by the purchaser.
4.3.24.3.2During process of manufacture of individualDuring process of manufacture of individual
wires for stranding, welding is permitted only prior towires for stranding, welding is permitted only prior to
or at the time of last heat treatment.or at the time of last heat treatment.
4.3.34.3.3During fabrication of the During fabrication of the seven-wire (ply) strand,seven-wire (ply) strand,
butt-welded joints may be made in butt-welded joints may be made in the individual wires,the individual wires,
provided there is not more than one such joint in anyprovided there is not more than one such joint in any
4545m section of thm section of the completed se completed strand.trand.
NOTE — When specifically ordered as weldless grade, aNOTE — When specifically ordered as weldless grade, a
product free of welds shall be supplied. When this grade isproduct free of welds shall be supplied. When this grade is
specified, no welds or joints arespecified, no welds or joints arepermitted except as detailedpermitted except as detailed
inin4.3.24.3.2..
4.4 4.4 Treatment of Treatment of StrandStrand
4.4.14.4.1After stranding, all strands shall be subjected toAfter stranding, all strands shall be subjected to
a continuous thermo-mechanical treatment to producea continuous thermo-mechanical treatment to produce
the prescribed mechanical properties.the prescribed mechanical properties.
4.4.24.4.2Temper colours that may result from the thermalTemper colours that may result from the thermal
operation are considered normal for the finishedoperation are considered normal for the finished
appearance of this strand.appearance of this strand.
4.4.34.4.3After thermo-mechanical treatment, the strandAfter thermo-mechanical treatment, the strand
shall be reformed into coils or wound on to reels,shall be reformed into coils or wound on to reels,
having core diameter of sufficient size and in any casehaving core diameter of sufficient size and in any case
not less than 600 mm to ensure that the strand will laynot less than 600 mm to ensure that the strand will lay
out straight.out straight.
4.5 4.5 Workmanship Workmanship and Fand Finishinish
The finished strand shall be uniform in diameter andThe finished strand shall be uniform in diameter and
shall be free from injuries, flaws and imperfections.shall be free from injuries, flaws and imperfections.
Slight rusting, provided it is not suffSlight rusting, provided it is not sufficient to cause pitsicient to cause pits
visible to the naked eye, shall not be a cause forvisible to the naked eye, shall not be a cause for
rejection.rejection.
5 CLASS5 CLASS
The strand shall be either Class 1 or ClThe strand shall be either Class 1 or Class 2 dependingass 2 depending
on the breaking strength of the stron the breaking strength of the strand given in Table 1.and given in Table 1.
6 6 DIMENSION, TODIMENSION, TO LERANCE, UNIT LERANCE, UNIT WEIGHTWEIGHT
AND PHYSICAL REQUIREMENTSAND PHYSICAL REQUIREMENTS
6.16.1The nominal diameter, tolerance, nominal cross-The nominal diameter, tolerance, nominal cross-
sectional area and nominal mass per unit length of thesectional area and nominal mass per unit length of the
strand shall be as given in Table 2.strand shall be as given in Table 2.
6.1.16.1.1 The nominal diameter of strand shall be measured The nominal diameter of strand shall be measured
across the crown of the wires and in accordance withacross the crown of the wires and in accordance with
the method given in Annex A.the method given in Annex A.
6.26.2Physical Physical RequiremRequirements oents or Mechr Mechanical anical PropertiesProperties
6.2.16.2.1GeneralGeneral
While conducting the tests for physical requirementsWhile conducting the tests for physical requirements
as specified inas specified in6.2.26.2.2 to to6.2.46.2.4, premature failure of the, premature failure of the
test specimens may result if there is any appreciabletest specimens may result if there is any appreciable
notching, cutting or bending of the specimen by thenotching, cutting or bending of the specimen by the
gripping devices of the testing machine. Errors ingripping devices of the testing machine. Errors in
testing may result if all the wires constituting the strandtesting may result if all the wires constituting the strand
Table 1 Physical PropertiesTable 1 Physical Properties
((ClausesClauses 5, 6.2.2.1, 6.2.2.2 5, 6.2.2.1, 6.2.2.2andand6.2.3)6.2.3)
SSll CCllaassss NNoommiinnaal l DDiiaa BBrreeaakkiinng g SSttrreennggtthh 00..2 2 PPeerrcceennt t PPrroooof f LLooaadd
NNoo.. oof f SSttrraanndd oof f SSttrraanndd ((990 0 PPeerrcceennt t oof f BBrreeaakkiinng g SSttrreennggtthh))
Min Min MinMin
mmmm kkNN kkggff kkNN kkggf f
((11)) ((22)) ((33)) ((44)) ((55)) ((66)) ((77))
ii)) 99..55 8899..00 9 9 007788 8800..11 8 8 117700
iiii)) 1111..11 112200..11 112 2 225500 110088..11 111 1 002266
iii)iii)
11
1122..77 116600..11 116 6 333300 114444..11 114 4 669988
iivv)) 1155..22 224400..22 224 4 550000 221166..22 222 2 005522
vv)) 99..55 110022..33 110 0 443344 9922..11 9 9 339944
vi)vi)
22
1111..11 113377..99 114 4 006655 112244..11 112 2 665588
vviiii)) 1122..77 118833..77 118 8 773377 116655..33 116 6 886600
vviiiiii)) 1155..22 226600..77 226 6 559922 223344..66 223 3 992299
NOTE — The modNOTE — The modulus of elastiulus of elasticity is to be tcity is to be taken as 195aken as 195±±10 kN/mm10 kN/mm
22
, unless otherwise indicated by the manufacturer., unless otherwise indicated by the manufacturer.
33
IS 14268 : 2017IS 14268 : 2017
are not loaded uniformly. In order to minimize theseare not loaded uniformly. In order to minimize these
difficulties, the following should be adopted:difficulties, the following should be adopted:
a)a)LengLength oth of grif grip shp should ould be abe at leat least st equaequal to l to oneone
lay length of the strand being tested,lay length of the strand being tested,
b)b)WedWedge ange and bad barrerrel typl type oe of grif grips ps shoshould buld bee
avoided,avoided,
cc))GriGrip jawp jaws ss shouhould be sld be semiemi-ci-circrculaular witr withh
serrations for developing adequate grip andserrations for developing adequate grip and
ensuring no slippage. The above method of ensuring no slippage. The above method of
gripping along with other suggested methodsgripping along with other suggested methods
has been described in Annex C,has been described in Annex C,
d)d)GriGrippipping forng force sce shouhould be deld be develvelopeoped eitd eitherher
hydraulically or pneumatically,hydraulically or pneumatically,
e)e)AddAdditiitionaonal inl inserserts mts may bay be use used ted to preo prevenventt
biting of wire surface, andbiting of wire surface, and
f)f)LoaLoad sd shouhould ld be be appapplielied d gragradudualally.ly.
6.2.1.16.2.1.1Tests in which fracture of any of the wiresTests in which fracture of any of the wires
occur within a distance of 3 mm from the jaws of theoccur within a distance of 3 mm from the jaws of the
machine shall be discarded, if the results do not complymachine shall be discarded, if the results do not comply
with the requirements of this standard. In such caseswith the requirements of this standard. In such cases
the test shall be repeated.the test shall be repeated.
6.2.26.2.2 Breaking Strength and 0.2 Percent Proof Load Breaking Strength and 0.2 Percent Proof Load
6.2.2.16.2.2.1The breaking strength and 0.2 percent proof The breaking strength and 0.2 percent proof
load of the strand shall be determined in accordanceload of the strand shall be determined in accordance
with IS 1608 and shall be not less than the valueswith IS 1608 and shall be not less than the values
specified in Table 1.specified in Table 1.
6.2.2.26.2.2.2Alternatively by mutual agreement betweenAlternatively by mutual agreement between
the purchaser and the manufacturer, the load atthe purchaser and the manufacturer, the load at
1.01.0percent extenspercent extension may be determined. In this test,ion may be determined. In this test,
an initial load equivalent to 10 percent of specifiedan initial load equivalent to 10 percent of specified
minimum breaking strengminimum breaking strength shall be applied to the testth shall be applied to the test
piece and a sensitive extensometer then attached. Thepiece and a sensitive extensometer then attached. The
dial of the latter shall be adjusted to read 0.001 mm/ dial of the latter shall be adjusted to read 0.001 mm/
mm of the gauge length to represent the extension duemm of the gauge length to represent the extension due
to the initial load. The load shall be increased until theto the initial load. The load shall be increased until the
extensometer shows an extension corresponding to 1.0extensometer shows an extension corresponding to 1.0
percent. The load at this extension shall not be lesspercent. The load at this extension shall not be less
than the minimum 0.2 percent proof load specified inthan the minimum 0.2 percent proof load specified in
Table 1. In case of dispute, 0.2 percent proof load shallTable 1. In case of dispute, 0.2 percent proof load shall
apply.apply.
6.2.36.2.3ElongationElongation
The total elongation under load shall not be less thanThe total elongation under load shall not be less than
3.5 percent on a minimum gauge length of 600 mm.3.5 percent on a minimum gauge length of 600 mm.
The total elongation shall be measured by a suitableThe total elongation shall be measured by a suitable
extensometer which is attached to the test piece, afterextensometer which is attached to the test piece, after
an initial load equivalent to 10 percent of the requiredan initial load equivalent to 10 percent of the required
minimum breaking load as specified in Table 1 hasminimum breaking load as specified in Table 1 has
been applied.been applied.
The dial of the extensometer shall be adjusted to readThe dial of the extensometer shall be adjusted to read
0.001 mm/mm of the initial gauge length,0.001 mm/mm of the initial gauge length,GG
00
toto
represent the extension due to the initrepresent the extension due to the initial load. The loadial load. The load
shall be increased until the extensometer shows anshall be increased until the extensometer shows an
extension corresponding to 1.0 percent. The readingextension corresponding to 1.0 percent. The reading
on the measuring scale mounted on the machine shallon the measuring scale mounted on the machine shall
be noted asbe noted as R R
11
or the gauge length between th or the gauge length between the jaws of e jaws of
the machine shall be measured with a measuring tapethe machine shall be measured with a measuring tape
asasGG
11
..
Following an extension of 1.0 percent, theFollowing an extension of 1.0 percent, the
extensometer may be removed. The loading shall beextensometer may be removed. The loading shall be
continued either till at least any one wire of the strandcontinued either till at least any one wire of the strand
breaks or to ultimate failure. Once the wire breakbreaks or to ultimate failure. Once the wire breaks, thes, the
breaking load on the machine shall be noted and thebreaking load on the machine shall be noted and the
machine shall be stopped. The second reading on themachine shall be stopped. The second reading on the
measuring scale shall be noted asmeasuring scale shall be noted as R R
22
or the gauge length or the gauge length
at the time of breaking of wire between two grips shallat the time of breaking of wire between two grips shall
be measured asbe measured asGG
22
. The elongation value is then. The elongation value is then
Table 2 Table 2 Dimensions, Tolerances and Mass Dimensions, Tolerances and Mass of Seven-Wire Strandsof Seven-Wire Strands
((ClauseClause 6.1) 6.1)
SSll CCllaassss NNoommiinnaal l DDiiaa TToolleerraannccee NNoommiinnaal l AArreeaa NNoommiinnaal l MMaassss
NNoo.. oof f SSttrraanndd oof f SSttrraanndd oof f SSttrraanndd
mmmm mmmm mmmm
22
kg/kmkg/km
((11)) ((22)) ((33)) ((44)) ((55)) ((66))
ii)) 99..55 ± ± 00..4400 5511..66 440055
iiii)) 1111..11 ± ± 00..4400 6699..77 554488
iii)iii)
11
1122..77 ± ± 00..4400 9922..99 773300
iivv)) 1155..22 ± ± 00..4400 113399..44 1 1 009944
vv)) 99..55 + + 00..6666 5544..88 443322
– 0.15– 0.15
vi)vi)
22
1111..11 + + 00..6666 7744..22 558822
– 0.15– 0.15
vviiii)) 1122..77 + + 00..6666 9988..77 777755
– 0.15– 0.15
vviiiiii)) 1155..22 + + 00..6666 114400..00 1 1 110022
– 0.15– 0.15
NOTE — The nominal cross-sectional area and the nominal mass of strand are given for information only. The method for measuringNOTE — The nominal cross-sectional area and the nominal mass of strand are given for information only. The method for measuring
nominal cross-secnominal cross-sectional area and the tional area and the nominal mass per unit length of nominal mass per unit length of the strand is given in the strand is given in Annex B.Annex B.
IS 14268 : 2017IS 14268 : 2017
are not loaded uniformly. In order to minimize theseare not loaded uniformly. In order to minimize these
difficulties, the following should be adopted:difficulties, the following should be adopted:
a)a)LengLength oth of grif grip shp should ould be abe at leat least st equaequal to l to oneone
lay length of the strand being tested,lay length of the strand being tested,
b)b)WedWedge ange and bad barrerrel typl type oe of grif grips ps shoshould buld bee
avoided,avoided,
cc))GriGrip jawp jaws ss shouhould be sld be semiemi-ci-circrculaular witr withh
serrations for developing adequate grip andserrations for developing adequate grip and
ensuring no slippage. The above method of ensuring no slippage. The above method of
gripping along with other suggested methodsgripping along with other suggested methods
has been described in Annex C,has been described in Annex C,
d)d)GriGrippipping forng force sce shouhould be deld be develvelopeoped eitd eitherher
hydraulically or pneumatically,hydraulically or pneumatically,
e)e)AddAdditiitionaonal inl inserserts mts may bay be use used ted to preo prevenventt
biting of wire surface, andbiting of wire surface, and
f)f)LoaLoad sd shouhould ld be be appapplielied d gragradudualally.ly.
6.2.1.16.2.1.1Tests in which fracture of any of the wiresTests in which fracture of any of the wires
occur within a distance of 3 mm from the jaws of theoccur within a distance of 3 mm from the jaws of the
machine shall be discarded, if the results do not complymachine shall be discarded, if the results do not comply
with the requirements of this standard. In such caseswith the requirements of this standard. In such cases
the test shall be repeated.the test shall be repeated.
6.2.26.2.2 Breaking Strength and 0.2 Percent Proof Load Breaking Strength and 0.2 Percent Proof Load
6.2.2.16.2.2.1The breaking strength and 0.2 percent proof The breaking strength and 0.2 percent proof
load of the strand shall be determined in accordanceload of the strand shall be determined in accordance
with IS 1608 and shall be not less than the valueswith IS 1608 and shall be not less than the values
specified in Table 1.specified in Table 1.
6.2.2.26.2.2.2Alternatively by mutual agreement betweenAlternatively by mutual agreement between
the purchaser and the manufacturer, the load atthe purchaser and the manufacturer, the load at
1.01.0percent extenspercent extension may be determined. In this test,ion may be determined. In this test,
an initial load equivalent to 10 percent of specifiedan initial load equivalent to 10 percent of specified
minimum breaking strengminimum breaking strength shall be applied to the testth shall be applied to the test
piece and a sensitive extensometer then attached. Thepiece and a sensitive extensometer then attached. The
dial of the latter shall be adjusted to read 0.001 mm/ dial of the latter shall be adjusted to read 0.001 mm/
mm of the gauge length to represent the extension duemm of the gauge length to represent the extension due
to the initial load. The load shall be increased until theto the initial load. The load shall be increased until the
extensometer shows an extension corresponding to 1.0extensometer shows an extension corresponding to 1.0
percent. The load at this extension shall not be lesspercent. The load at this extension shall not be less
than the minimum 0.2 percent proof load specified inthan the minimum 0.2 percent proof load specified in
Table 1. In case of dispute, 0.2 percent proof load shallTable 1. In case of dispute, 0.2 percent proof load shall
apply.apply.
6.2.36.2.3ElongationElongation
The total elongation under load shall not be less thanThe total elongation under load shall not be less than
3.5 percent on a minimum gauge length of 600 mm.3.5 percent on a minimum gauge length of 600 mm.
The total elongation shall be measured by a suitableThe total elongation shall be measured by a suitable
extensometer which is attached to the test piece, afterextensometer which is attached to the test piece, after
an initial load equivalent to 10 percent of the requiredan initial load equivalent to 10 percent of the required
minimum breaking load as specified in Table 1 hasminimum breaking load as specified in Table 1 has
been applied.been applied.
The dial of the extensometer shall be adjusted to readThe dial of the extensometer shall be adjusted to read
0.001 mm/mm of the initial gauge length,0.001 mm/mm of the initial gauge length,GG
00
toto
represent the extension due to the initrepresent the extension due to the initial load. The loadial load. The load
shall be increased until the extensometer shows anshall be increased until the extensometer shows an
extension corresponding to 1.0 percent. The readingextension corresponding to 1.0 percent. The reading
on the measuring scale mounted on the machine shallon the measuring scale mounted on the machine shall
be noted asbe noted as R R
11
or the gauge length between th or the gauge length between the jaws of e jaws of
the machine shall be measured with a measuring tapethe machine shall be measured with a measuring tape
asasGG
11
..
Following an extension of 1.0 percent, theFollowing an extension of 1.0 percent, the
extensometer may be removed. The loading shall beextensometer may be removed. The loading shall be
continued either till at least any one wire of the strandcontinued either till at least any one wire of the strand
breaks or to ultimate failure. Once the wire breakbreaks or to ultimate failure. Once the wire breaks, thes, the
breaking load on the machine shall be noted and thebreaking load on the machine shall be noted and the
machine shall be stopped. The second reading on themachine shall be stopped. The second reading on the
measuring scale shall be noted asmeasuring scale shall be noted as R R
22
or the gauge length or the gauge length
at the time of breaking of wire between two grips shallat the time of breaking of wire between two grips shall
be measured asbe measured asGG
22
. The elongation value is then. The elongation value is then
Table 2 Table 2 Dimensions, Tolerances and Mass Dimensions, Tolerances and Mass of Seven-Wire Strandsof Seven-Wire Strands
((ClauseClause 6.1) 6.1)
SSll CCllaassss NNoommiinnaal l DDiiaa TToolleerraannccee NNoommiinnaal l AArreeaa NNoommiinnaal l MMaassss
NNoo.. oof f SSttrraanndd oof f SSttrraanndd oof f SSttrraanndd
mmmm mmmm mmmm
22
kg/kmkg/km
((11)) ((22)) ((33)) ((44)) ((55)) ((66))
ii)) 99..55 ± ± 00..4400 5511..66 440055
iiii)) 1111..11 ± ± 00..4400 6699..77 554488
iii)iii)
11
1122..77 ± ± 00..4400 9922..99 773300
iivv)) 1155..22 ± ± 00..4400 113399..44 1 1 009944
vv)) 99..55 + + 00..6666 5544..88 443322
– 0.15– 0.15
vi)vi)
22
1111..11 + + 00..6666 7744..22 558822
– 0.15– 0.15
vviiii)) 1122..77 + + 00..6666 9988..77 777755
– 0.15– 0.15
vviiiiii)) 1155..22 + + 00..6666 114400..00 1 1 110022
– 0.15– 0.15
NOTE — The nominal cross-sectional area and the nominal mass of strand are given for information only. The method for measuringNOTE — The nominal cross-sectional area and the nominal mass of strand are given for information only. The method for measuring
nominal cross-secnominal cross-sectional area and the tional area and the nominal mass per unit length of nominal mass per unit length of the strand is given in the strand is given in Annex B.Annex B.
44
IS 14268 : 2017IS 14268 : 2017
determined by the movement between the jaw determined by the movement between the jaw grippinggripping
the test piece on the new base length of jaw-to-jawthe test piece on the new base length of jaw-to-jaw
distance to which will be added the distance to which will be added the value of 1.0 percentvalue of 1.0 percent
determined by the extensometer.determined by the extensometer.
22 11
00
––
EElloonnggaattiioonn, , iinnppeerrcceenntt==11..00++ ××110000
R R RR
GG
oror
2 2 11
00
EElloonnggaattiioonn, , iin n ppeerrcceennt t 11..0 0 110000
G G GG
GG
6.2.46.2.4 Relaxation Properties Relaxation Properties
6.2.4.16.2.4.1Low relaxation strand, when initially loadedLow relaxation strand, when initially loaded
to 70 percent of specified minimum breaking strengthto 70 percent of specified minimum breaking strength
of the strand, shall have relaxation losses of not moreof the strand, shall have relaxation losses of not more
than 1.8 percent after 100 h and not more than 2.5than 1.8 percent after 100 h and not more than 2.5
percent after 1 000 h when tested under the conditionspercent after 1 000 h when tested under the conditions
given ingiven in6.2.4.26.2.4.2toto6.2.4.86.2.4.8..
Relaxation test for 1 000 h shall be a type approvalRelaxation test for 1 000 h shall be a type approval
test and shall be carried out at least once in a year ortest and shall be carried out at least once in a year or
whenever there is any change in the process of whenever there is any change in the process of
manufacture, for each type of strand.manufacture, for each type of strand.
6.2.4.26.2.4.2If required, the manufacturer shall provideIf required, the manufacturer shall provide
relaxation evidence from the manufacturer’s recordsrelaxation evidence from the manufacturer’s records
of tests on similarly dimensioned strand of the sameof tests on similarly dimensioned strand of the same
grade.grade.
6.2.4.36.2.4.3The temperature of the test piece shall beThe temperature of the test piece shall be
maintained at 20 ± 2°C.maintained at 20 ± 2°C.
6.2.4.46.2.4.4The test piece shall not be subjected to loadingThe test piece shall not be subjected to loading
prior to the relaxation test.prior to the relaxation test.
6.2.4.56.2.4.5The initial load shall be applied uniformly overThe initial load shall be applied uniformly over
a period of not less thaa period of not less than 3 min and not more than 5n 3 min and not more than 5minmin
and the gauge length shall be maintained constant.and the gauge length shall be maintained constant.
Load relaxatiLoad relaxation readings shall common readings shall commence 1ence 1min aftermin after
application of the total load.application of the total load.
6.2.4.66.2.4.6Over-stressing of the test piece during theOver-stressing of the test piece during the
loading operations shall not be permitted.loading operations shall not be permitted.
6.2.4.76.2.4.7The duration of the test shall be 1 000 h or aThe duration of the test shall be 1 000 h or a
short computed period of 100 h, extrapolated toshort computed period of 100 h, extrapolated to
1 0001 000h, which cah, which can be shown by recn be shown by records to provideords to provide
similar relaxation values.similar relaxation values.
6.2.4.86.2.4.8The test gauge length should be at least 40The test gauge length should be at least 40
times the nominal strand diameter.times the nominal strand diameter.
77SAMSAMPLIPLING AND NG AND CRICRITERTERIA FORIA FOR
CONFORMITYCONFORMITY
7.1 7.1 Selection of Selection of Test SamplesTest Samples
Test samples of sufficient length to permit the tests forTest samples of sufficient length to permit the tests for
breaking load, 0.2 percent proof load and elongationbreaking load, 0.2 percent proof load and elongation
shall be cut from one end of a coil selected at randomshall be cut from one end of a coil selected at random
from a group of every 5 numbers of coils; but samplefrom a group of every 5 numbers of coils; but sample
size shall not be less than 2 from each lot.size shall not be less than 2 from each lot.
7.1.17.1.1The test sample shall not be detached from theThe test sample shall not be detached from the
coil or length of strand, except in the presence of coil or length of strand, except in the presence of
purchaser or his authorized representative.purchaser or his authorized representative.
7.1.27.1.2Before test samples are selected, theBefore test samples are selected, the
manufacturer or supplier shall furnish the purchasermanufacturer or supplier shall furnish the purchaser
or his authorized representative with copies of the millor his authorized representative with copies of the mill
records giving number of coils in each cast with sizesrecords giving number of coils in each cast with sizes
as well as the identification marks, whereby each coilas well as the identification marks, whereby each coil
can be identified.can be identified.
7.1.37.1.3 If required by the purchaser, 100 h relaxation If required by the purchaser, 100 h relaxation
test shall be carried out on a sample from the lot.test shall be carried out on a sample from the lot.
7.2 7.2 Criteria Criteria for for ConformityConformity
7.2.17.2.1Should any sample fail any of the tests, byShould any sample fail any of the tests, by
agreement between the manufacturer and the purchaser,agreement between the manufacturer and the purchaser,
two additional test samples from the same end of thetwo additional test samples from the same end of the
same coil shall be taken and subjected to the test orsame coil shall be taken and subjected to the test or
tests in which the original sample failed. Should bothtests in which the original sample failed. Should both
additional samples pass the test or tests, the coil fromadditional samples pass the test or tests, the coil from
which they were taken shall be deemed to comply withwhich they were taken shall be deemed to comply with
the requirements of this standard. Should either of the requirements of this standard. Should either of themthem
fail, the coil shall be deemed not to comply.fail, the coil shall be deemed not to comply.
7.37.3Should 10 percent or more of the selected coilsShould 10 percent or more of the selected coils
fail to fulfil the requirement of this standard, the parcelfail to fulfil the requirement of this standard, the parcel
from which they were taken shall be deemed not tofrom which they were taken shall be deemed not to
comply with this standard.comply with this standard.
88DELIVDELIVERY, INERY, INSPECSPECTION ATION AND TESTND TESTINGING
FACILITIESFACILITIES
8.18.1 Unless otherwise specified, general requirements Unless otherwise specified, general requirements
relating to the supply of material, inspection and testingrelating to the supply of material, inspection and testing
shall conform to IS 1387.shall conform to IS 1387.
8.28.2The purchaser or The purchaser or his authorized representative shallhis authorized representative shall
be at liberty to inspect and verify the steel maker’sbe at liberty to inspect and verify the steel maker’s
certificate of cast analysis at the premises of thecertificate of cast analysis at the premises of the
manufacturer or supplier; when the purchaser requiresmanufacturer or supplier; when the purchaser requires
an actual analysis of finished material, this shall bean actual analysis of finished material, this shall be
made at a place agreed to between the purchaser andmade at a place agreed to between the purchaser and
the manufacturer or the supplier.the manufacturer or the supplier.
8.38.3Manufacturer’s CertificateManufacturer’s Certificate
In the case of strands which have not been inspected atIn the case of strands which have not been inspected at
the manufacturer’s work the manufacturer or supplier,the manufacturer’s work the manufacturer or supplier,
as the case may be, shall supply the purchaser or hisas the case may be, shall supply the purchaser or his
authorized representative with the certificate statingauthorized representative with the certificate stating
the process of manufacture and also the test sheetthe process of manufacture and also the test sheet
signed by the manufacturer giving the result of eachsigned by the manufacturer giving the result of each
mechanical test, 0.2 percent proof load and themechanical test, 0.2 percent proof load and the
chemical composition, if required. Each chemical composition, if required. Each test sheet shalltest sheet shall
IS 14268 : 2017IS 14268 : 2017
determined by the movement between the jaw determined by the movement between the jaw grippinggripping
the test piece on the new base length of jaw-to-jawthe test piece on the new base length of jaw-to-jaw
distance to which will be added the distance to which will be added the value of 1.0 percentvalue of 1.0 percent
determined by the extensometer.determined by the extensometer.
22 11
00
––
EElloonnggaattiioonn, , iinnppeerrcceenntt==11..00++ ××110000
R R RR
GG
oror
2 2 11
00
EElloonnggaattiioonn, , iin n ppeerrcceennt t 11..0 0 110000
G G GG
GG
6.2.46.2.4 Relaxation Properties Relaxation Properties
6.2.4.16.2.4.1Low relaxation strand, when initially loadedLow relaxation strand, when initially loaded
to 70 percent of specified minimum breaking strengthto 70 percent of specified minimum breaking strength
of the strand, shall have relaxation losses of not moreof the strand, shall have relaxation losses of not more
than 1.8 percent after 100 h and not more than 2.5than 1.8 percent after 100 h and not more than 2.5
percent after 1 000 h when tested under the conditionspercent after 1 000 h when tested under the conditions
given ingiven in6.2.4.26.2.4.2toto6.2.4.86.2.4.8..
Relaxation test for 1 000 h shall be a type approvalRelaxation test for 1 000 h shall be a type approval
test and shall be carried out at least once in a year ortest and shall be carried out at least once in a year or
whenever there is any change in the process of whenever there is any change in the process of
manufacture, for each type of strand.manufacture, for each type of strand.
6.2.4.26.2.4.2If required, the manufacturer shall provideIf required, the manufacturer shall provide
relaxation evidence from the manufacturer’s recordsrelaxation evidence from the manufacturer’s records
of tests on similarly dimensioned strand of the sameof tests on similarly dimensioned strand of the same
grade.grade.
6.2.4.36.2.4.3The temperature of the test piece shall beThe temperature of the test piece shall be
maintained at 20 ± 2°C.maintained at 20 ± 2°C.
6.2.4.46.2.4.4The test piece shall not be subjected to loadingThe test piece shall not be subjected to loading
prior to the relaxation test.prior to the relaxation test.
6.2.4.56.2.4.5The initial load shall be applied uniformly overThe initial load shall be applied uniformly over
a period of not less thaa period of not less than 3 min and not more than 5n 3 min and not more than 5minmin
and the gauge length shall be maintained constant.and the gauge length shall be maintained constant.
Load relaxatiLoad relaxation readings shall common readings shall commence 1ence 1min aftermin after
application of the total load.application of the total load.
6.2.4.66.2.4.6Over-stressing of the test piece during theOver-stressing of the test piece during the
loading operations shall not be permitted.loading operations shall not be permitted.
6.2.4.76.2.4.7The duration of the test shall be 1 000 h or aThe duration of the test shall be 1 000 h or a
short computed period of 100 h, extrapolated toshort computed period of 100 h, extrapolated to
1 0001 000h, which cah, which can be shown by recn be shown by records to provideords to provide
similar relaxation values.similar relaxation values.
6.2.4.86.2.4.8The test gauge length should be at least 40The test gauge length should be at least 40
times the nominal strand diameter.times the nominal strand diameter.
77SAMSAMPLIPLING AND NG AND CRICRITERTERIA FORIA FOR
CONFORMITYCONFORMITY
7.1 7.1 Selection of Selection of Test SamplesTest Samples
Test samples of sufficient length to permit the tests forTest samples of sufficient length to permit the tests for
breaking load, 0.2 percent proof load and elongationbreaking load, 0.2 percent proof load and elongation
shall be cut from one end of a coil selected at randomshall be cut from one end of a coil selected at random
from a group of every 5 numbers of coils; but samplefrom a group of every 5 numbers of coils; but sample
size shall not be less than 2 from each lot.size shall not be less than 2 from each lot.
7.1.17.1.1The test sample shall not be detached from theThe test sample shall not be detached from the
coil or length of strand, except in the presence of coil or length of strand, except in the presence of
purchaser or his authorized representative.purchaser or his authorized representative.
7.1.27.1.2Before test samples are selected, theBefore test samples are selected, the
manufacturer or supplier shall furnish the purchasermanufacturer or supplier shall furnish the purchaser
or his authorized representative with copies of the millor his authorized representative with copies of the mill
records giving number of coils in each cast with sizesrecords giving number of coils in each cast with sizes
as well as the identification marks, whereby each coilas well as the identification marks, whereby each coil
can be identified.can be identified.
7.1.37.1.3 If required by the purchaser, 100 h relaxation If required by the purchaser, 100 h relaxation
test shall be carried out on a sample from the lot.test shall be carried out on a sample from the lot.
7.2 7.2 Criteria Criteria for for ConformityConformity
7.2.17.2.1Should any sample fail any of the tests, byShould any sample fail any of the tests, by
agreement between the manufacturer and the purchaser,agreement between the manufacturer and the purchaser,
two additional test samples from the same end of thetwo additional test samples from the same end of the
same coil shall be taken and subjected to the test orsame coil shall be taken and subjected to the test or
tests in which the original sample failed. Should bothtests in which the original sample failed. Should both
additional samples pass the test or tests, the coil fromadditional samples pass the test or tests, the coil from
which they were taken shall be deemed to comply withwhich they were taken shall be deemed to comply with
the requirements of this standard. Should either of the requirements of this standard. Should either of themthem
fail, the coil shall be deemed not to comply.fail, the coil shall be deemed not to comply.
7.37.3Should 10 percent or more of the selected coilsShould 10 percent or more of the selected coils
fail to fulfil the requirement of this standard, the parcelfail to fulfil the requirement of this standard, the parcel
from which they were taken shall be deemed not tofrom which they were taken shall be deemed not to
comply with this standard.comply with this standard.
88DELIVDELIVERY, INERY, INSPECSPECTION ATION AND TESTND TESTINGING
FACILITIESFACILITIES
8.18.1 Unless otherwise specified, general requirements Unless otherwise specified, general requirements
relating to the supply of material, inspection and testingrelating to the supply of material, inspection and testing
shall conform to IS 1387.shall conform to IS 1387.
8.28.2The purchaser or The purchaser or his authorized representative shallhis authorized representative shall
be at liberty to inspect and verify the steel maker’sbe at liberty to inspect and verify the steel maker’s
certificate of cast analysis at the premises of thecertificate of cast analysis at the premises of the
manufacturer or supplier; when the purchaser requiresmanufacturer or supplier; when the purchaser requires
an actual analysis of finished material, this shall bean actual analysis of finished material, this shall be
made at a place agreed to between the purchaser andmade at a place agreed to between the purchaser and
the manufacturer or the supplier.the manufacturer or the supplier.
8.38.3Manufacturer’s CertificateManufacturer’s Certificate
In the case of strands which have not been inspected atIn the case of strands which have not been inspected at
the manufacturer’s work the manufacturer or supplier,the manufacturer’s work the manufacturer or supplier,
as the case may be, shall supply the purchaser or hisas the case may be, shall supply the purchaser or his
authorized representative with the certificate statingauthorized representative with the certificate stating
the process of manufacture and also the test sheetthe process of manufacture and also the test sheet
signed by the manufacturer giving the result of eachsigned by the manufacturer giving the result of each
mechanical test, 0.2 percent proof load and themechanical test, 0.2 percent proof load and the
chemical composition, if required. Each chemical composition, if required. Each test sheet shalltest sheet shall
55
IS 14268 : 2017IS 14268 : 2017
indicate the number or identification mark of the castindicate the number or identification mark of the cast
to which it applies, corresponding to the number orto which it applies, corresponding to the number or
identification mark to be found on the material.identification mark to be found on the material.
9 PACKING9 PACKING
9.19.1Unless otherwise agreed to between the purchaserUnless otherwise agreed to between the purchaser
and the supplier the strands shall be supplied asand the supplier the strands shall be supplied as
indicated inindicated in9.1.19.1.1oror9.1.29.1.2..
9.1.19.1.1Strand shall be supplied in reels or in reellessStrand shall be supplied in reels or in reelless
packs having a minimum core diameter of 600 mm.packs having a minimum core diameter of 600 mm.
Lengths on reels or reelless packs shall be as perLengths on reels or reelless packs shall be as per
agreement between the manufacturer and the purchaser.agreement between the manufacturer and the purchaser.
9.1.29.1.2The coil shall be securely strapped to preventThe coil shall be securely strapped to prevent
distortion of the coil in transit and unless otherwisedistortion of the coil in transit and unless otherwise
specified the coil shall be protected agaspecified the coil shall be protected against damage ininst damage in
transit by wrapping with hessian.transit by wrapping with hessian.
9.1.39.1.3By mutual agreement between the purchaser andBy mutual agreement between the purchaser and
the manufacturer, water soluble oil may be applied onthe manufacturer, water soluble oil may be applied on
strands.strands.
A-1 A-1 LENGTH OF LENGTH OF LAY OF LAY OF STRANDSTRAND
The sample shall be kept horizontThe sample shall be kept horizontally on the table andally on the table and
a plain paper shall be put on the sample. A carbon papera plain paper shall be put on the sample. A carbon paper
shall then be placed in a reverse manner on top of theshall then be placed in a reverse manner on top of the
plain paper and rubbed gently on the sample with aplain paper and rubbed gently on the sample with a
round object. Impressions of wire will be seen on theround object. Impressions of wire will be seen on the
paper in the form of slanted lines. A vertical line shallpaper in the form of slanted lines. A vertical line shall
be drawn at the starting end of any one marking/wirebe drawn at the starting end of any one marking/wire
impression and another vertical line shall be drawn atimpression and another vertical line shall be drawn at
the end of consecutive sixth marking/wire impression.the end of consecutive sixth marking/wire impression.
The distance between two straight lines shall beThe distance between two straight lines shall be
measured. The procedure shall be repeated at threemeasured. The procedure shall be repeated at three
different places and three such readingdifferent places and three such readings shall be taken.s shall be taken.
The average of these three readThe average of these three readings shall be the lengthings shall be the length
of lay of the strand.of lay of the strand.
A-2 A-2 NOMINAL NOMINAL DIAMETERDIAMETER
For measuring nominal diameter of seven wire strand,For measuring nominal diameter of seven wire strand,
10 MARKING10 MARKING
10.110.1Each reel or reel-less pack shall carry a labelEach reel or reel-less pack shall carry a label
giving the following details:giving the following details:
a)a)ManManufacufactureturer’s r’s namname oe or trr trade-ade-mark mark or bror brandand
name,name,
bb))CCooiil nl nuumbmbeerr,,
c)c)NomNominainal dil diamameteeter or of sf stratrand, nd, andand
dd))CCllaassss..
10.2 10.2 BIS BIS Certification MarkingCertification Marking
Each coil containing the strands may also be suitablyEach coil containing the strands may also be suitably
marked with the Standard Mark.marked with the Standard Mark.
10.2.110.2.1The use of Standard Mark is governed by The use of Standard Mark is governed by thethe
provisions ofprovisions of Bureau Bureau of of Indian Indian Standards Standards Act Act , 1986, 1986
and the Rules and Regulations made thereunder. Theand the Rules and Regulations made thereunder. The
details of conditions under which the licence for thedetails of conditions under which the licence for the
use of Standard Mark may be granted to manufacturersuse of Standard Mark may be granted to manufacturers
or producers may be obtained from the Bureau of or producers may be obtained from the Bureau of
Indian Standards.Indian Standards.
ANNEX AANNEX A
((ClausesClauses 4.2 4.2and and 6.1.1) 6.1.1)
MEASUREMENT OF LENGTH OF LAY, NOMINAL DIAMETER OF S TRAND AND DIFFERENCEMEASUREMENT OF LENGTH OF LAY, NOMINAL DIAMETER OF S TRAND AND DIFFERENCE
IN DIAMETER OF CENTRE WIRE AND SURROUNDING WIRE OF STRANDIN DIAMETER OF CENTRE WIRE AND SURROUNDING WIRE OF STRAND
the micrometer or vernier head shall be kept axiallythe micrometer or vernier head shall be kept axially
over the crown of outer wires so as to cover twoover the crown of outer wires so as to cover two
surrounding wires and the centre wire and then thesurrounding wires and the centre wire and then the
reading shall be taken. Three such readings in threereading shall be taken. Three such readings in three
directions shall be taken. The average of thosedirections shall be taken. The average of those
readings shall be the nominal diameter of seven wirereadings shall be the nominal diameter of seven wire
strand.strand.
A-3A-3PERCEPERCENTAGE DNTAGE DIFFERIFFERENCE IENCE IN DIAMEN DIAMETERTER
OF CENTRE WIRE AND OF CENTRE WIRE AND SURROUNDINSURROUNDIN G WIREG WIRE
The diameter of all the six surrounding wires andThe diameter of all the six surrounding wires and
the centre wire of the strand shall be measured. Thethe centre wire of the strand shall be measured. The
difference in diameter of centre wire anddifference in diameter of centre wire and
surrounding/outer wire of the strand shall besurrounding/outer wire of the strand shall be
calculated as given below:calculated as given below:
PercentagePercentage
differencedifference
((Diameter of centre wireDiameter of centre wire––
Maximum outer wire diameter)Maximum outer wire diameter)
== ××110000
Maximum outer wire diameterMaximum outer wire diameter
IS 14268 : 2017IS 14268 : 2017
indicate the number or identification mark of the castindicate the number or identification mark of the cast
to which it applies, corresponding to the number orto which it applies, corresponding to the number or
identification mark to be found on the material.identification mark to be found on the material.
9 PACKING9 PACKING
9.19.1Unless otherwise agreed to between the purchaserUnless otherwise agreed to between the purchaser
and the supplier the strands shall be supplied asand the supplier the strands shall be supplied as
indicated inindicated in9.1.19.1.1oror9.1.29.1.2..
9.1.19.1.1Strand shall be supplied in reels or in reellessStrand shall be supplied in reels or in reelless
packs having a minimum core diameter of 600 mm.packs having a minimum core diameter of 600 mm.
Lengths on reels or reelless packs shall be as perLengths on reels or reelless packs shall be as per
agreement between the manufacturer and the purchaser.agreement between the manufacturer and the purchaser.
9.1.29.1.2The coil shall be securely strapped to preventThe coil shall be securely strapped to prevent
distortion of the coil in transit and unless otherwisedistortion of the coil in transit and unless otherwise
specified the coil shall be protected agaspecified the coil shall be protected against damage ininst damage in
transit by wrapping with hessian.transit by wrapping with hessian.
9.1.39.1.3By mutual agreement between the purchaser andBy mutual agreement between the purchaser and
the manufacturer, water soluble oil may be applied onthe manufacturer, water soluble oil may be applied on
strands.strands.
A-1 A-1 LENGTH OF LENGTH OF LAY OF LAY OF STRANDSTRAND
The sample shall be kept horizontThe sample shall be kept horizontally on the table andally on the table and
a plain paper shall be put on the sample. A carbon papera plain paper shall be put on the sample. A carbon paper
shall then be placed in a reverse manner on top of theshall then be placed in a reverse manner on top of the
plain paper and rubbed gently on the sample with aplain paper and rubbed gently on the sample with a
round object. Impressions of wire will be seen on theround object. Impressions of wire will be seen on the
paper in the form of slanted lines. A vertical line shallpaper in the form of slanted lines. A vertical line shall
be drawn at the starting end of any one marking/wirebe drawn at the starting end of any one marking/wire
impression and another vertical line shall be drawn atimpression and another vertical line shall be drawn at
the end of consecutive sixth marking/wire impression.the end of consecutive sixth marking/wire impression.
The distance between two straight lines shall beThe distance between two straight lines shall be
measured. The procedure shall be repeated at threemeasured. The procedure shall be repeated at three
different places and three such readingdifferent places and three such readings shall be taken.s shall be taken.
The average of these three readThe average of these three readings shall be the lengthings shall be the length
of lay of the strand.of lay of the strand.
A-2 A-2 NOMINAL NOMINAL DIAMETERDIAMETER
For measuring nominal diameter of seven wire strand,For measuring nominal diameter of seven wire strand,
10 MARKING10 MARKING
10.110.1Each reel or reel-less pack shall carry a labelEach reel or reel-less pack shall carry a label
giving the following details:giving the following details:
a)a)ManManufacufactureturer’s r’s namname oe or trr trade-ade-mark mark or bror brandand
name,name,
bb))CCooiil nl nuumbmbeerr,,
c)c)NomNominainal dil diamameteeter or of sf stratrand, nd, andand
dd))CCllaassss..
10.2 10.2 BIS BIS Certification MarkingCertification Marking
Each coil containing the strands may also be suitablyEach coil containing the strands may also be suitably
marked with the Standard Mark.marked with the Standard Mark.
10.2.110.2.1The use of Standard Mark is governed by The use of Standard Mark is governed by thethe
provisions ofprovisions of Bureau Bureau of of Indian Indian Standards Standards Act Act , 1986, 1986
and the Rules and Regulations made thereunder. Theand the Rules and Regulations made thereunder. The
details of conditions under which the licence for thedetails of conditions under which the licence for the
use of Standard Mark may be granted to manufacturersuse of Standard Mark may be granted to manufacturers
or producers may be obtained from the Bureau of or producers may be obtained from the Bureau of
Indian Standards.Indian Standards.
ANNEX AANNEX A
((ClausesClauses 4.2 4.2and and 6.1.1) 6.1.1)
MEASUREMENT OF LENGTH OF LAY, NOMINAL DIAMETER OF S TRAND AND DIFFERENCEMEASUREMENT OF LENGTH OF LAY, NOMINAL DIAMETER OF S TRAND AND DIFFERENCE
IN DIAMETER OF CENTRE WIRE AND SURROUNDING WIRE OF STRANDIN DIAMETER OF CENTRE WIRE AND SURROUNDING WIRE OF STRAND
the micrometer or vernier head shall be kept axiallythe micrometer or vernier head shall be kept axially
over the crown of outer wires so as to cover twoover the crown of outer wires so as to cover two
surrounding wires and the centre wire and then thesurrounding wires and the centre wire and then the
reading shall be taken. Three such readings in threereading shall be taken. Three such readings in three
directions shall be taken. The average of thosedirections shall be taken. The average of those
readings shall be the nominal diameter of seven wirereadings shall be the nominal diameter of seven wire
strand.strand.
A-3A-3PERCEPERCENTAGE DNTAGE DIFFERIFFERENCE IENCE IN DIAMEN DIAMETERTER
OF CENTRE WIRE AND OF CENTRE WIRE AND SURROUNDINSURROUNDIN G WIREG WIRE
The diameter of all the six surrounding wires andThe diameter of all the six surrounding wires and
the centre wire of the strand shall be measured. Thethe centre wire of the strand shall be measured. The
difference in diameter of centre wire anddifference in diameter of centre wire and
surrounding/outer wire of the strand shall besurrounding/outer wire of the strand shall be
calculated as given below:calculated as given below:
PercentagePercentage
differencedifference
((Diameter of centre wireDiameter of centre wire––
Maximum outer wire diameter)Maximum outer wire diameter)
== ××110000
Maximum outer wire diameterMaximum outer wire diameter
66
IS 14268 : 2017IS 14268 : 2017
B-1 B-1 NOMINAL CRONOMINAL CRO SS-SECTIONAL AREASS-SECTIONAL AREA
The strand sample shall be unraveled to separateThe strand sample shall be unraveled to separate
individual wires. The diameter of individual wires, thatindividual wires. The diameter of individual wires, that
is, six surrounding wires and one centre wire of theis, six surrounding wires and one centre wire of the
strand shall be measured and the cross-sectional areastrand shall be measured and the cross-sectional area
of each wire shall then be computed. The sum of theof each wire shall then be computed. The sum of the
areas of individual wires is the nominal cross-sectionalareas of individual wires is the nominal cross-sectional
area of the strand.area of the strand.
ANNEX BANNEX B
((TableTable2)2)
MEASUREMENT OF NOMINAL CROSS-SECTIONAL AREA AND NOM INALMEASUREMENT OF NOMINAL CROSS-SECTIONAL AREA AND NOM INAL
MASS PER UNIT LENGTH OF STRANDMASS PER UNIT LENGTH OF STRAND
C-1C-1 The true mechanical properties of the strand are The true mechanical properties of the strand are
determined by a test in which fracture of the specimendetermined by a test in which fracture of the specimen
occurs in the free span between the jaws of the testingoccurs in the free span between the jaws of the testing
machine. Therefore, it is desirable to establish a testmachine. Therefore, it is desirable to establish a test
procedure with suitable apparatus that consistentlyprocedure with suitable apparatus that consistently
produces such results. Due to inherent physicalproduces such results. Due to inherent physical
characteristics of individual machines, it is not practicalcharacteristics of individual machines, it is not practical
to recommend a universal gripping procedure that isto recommend a universal gripping procedure that is
suitable for all testing machines. Therefore, it issuitable for all testing machines. Therefore, it is
necessary to determine which of the methods of necessary to determine which of the methods of
gripping described below is most suitable for the testinggripping described below is most suitable for the testing
equipment available.equipment available.
C-1.1 C-1.1 Special Grips with Special Grips with Smooth, Semi-CylindSmooth, Semi-Cylindricalrical
GroovesGrooves
The radius of curvature of the grooves is approximatelyThe radius of curvature of the grooves is approximately
the same as the radius of the strthe same as the radius of the strand being tested, and isand being tested, and is
located 0.8 mm above the flat face of the grip. Thislocated 0.8 mm above the flat face of the grip. This
prevents the two grips from closing tightly when theprevents the two grips from closing tightly when the
specimen is in place. The grooves and the grippedspecimen is in place. The grooves and the gripped
portions of the specimen are coated with an abrasiveportions of the specimen are coated with an abrasive
slurry which holds the specimen in the slurry which holds the specimen in the smooth grooves,smooth grooves,
preventing slippage. The slurry consists of abrasive,preventing slippage. The slurry consists of abrasive,
such as Grade 3-F aluminium oxide and a carrier suchsuch as Grade 3-F aluminium oxide and a carrier such
as water or glycerin.as water or glycerin.
C-1.2 C-1.2 Standard V-Grips Standard V-Grips with Serrated with Serrated TeethTeeth
The number of teeth should be approximately 6 toThe number of teeth should be approximately 6 to
B-2 B-2 NOMINAL MASS NOMINAL MASS PER UNIT LENGPER UNIT LENG TH OFTH OF
STRANDSTRAND
A sample of 100 cm length shall be cut and its massA sample of 100 cm length shall be cut and its mass
shall be measured, in kg. The length of the core wireshall be measured, in kg. The length of the core wire
in that sample shall then be measured, in metres. Thein that sample shall then be measured, in metres. The
nominal mass per unit length of a seven wire strand, innominal mass per unit length of a seven wire strand, in
kg/m shall be the ratio of the obtained mass of thekg/m shall be the ratio of the obtained mass of the
sample to the measured length of the centre/core wire.sample to the measured length of the centre/core wire.
ANNEX CANNEX C
((ClauseClause6.2.1)6.2.1)
SUGGESTED METHODS OF GRIPPING FOR TENSILE TESTING O F SUGGESTED METHODS OF GRIPPING FOR TENSILE TESTING O F STRANDSSTRANDS
1212per centimeper centimetre and the minimum effetre and the minimum effective grippinctive grippingg
length should be approximately 10 cm.length should be approximately 10 cm.
C-1.3 C-1.3 Standard V-GripStandard V-Grips with Serrated Teeth s with Serrated Teeth UsingUsing
Cushioning MaterialCushioning Material
The number of teeth and minimum effective grippingThe number of teeth and minimum effective gripping
length should be as given inlength should be as given inC-1.2C-1.2. In this method,. In this method,
some material is placed between the grips and thesome material is placed between the grips and the
specimen to minimize the notching effect of the teeth.specimen to minimize the notching effect of the teeth.
Materials like lead foil, aluminium foil, carborundumMaterials like lead foil, aluminium foil, carborundum
cloth, emery cloth, etc are being used for this purpose.cloth, emery cloth, etc are being used for this purpose.
The type and thickness of material required isThe type and thickness of material required is
dependent on the shape, condition, and coarseness of dependent on the shape, condition, and coarseness of
the teeth.the teeth.
C-1.4 C-1.4 Standard V-GripStandard V-Grips with Serrated Teeth s with Serrated Teeth UsingUsing
Special Preparation of the Gripped Portions of Special Preparation of the Gripped Portions of thethe
SpecimenSpecimen
The number of teeth and minimum effective grippingThe number of teeth and minimum effective gripping
length should be as given inlength should be as given inC-1.2C-1.2. In this method,. In this method,
some special preparatiosome special preparation is done in the gripped portionsn is done in the gripped portions
of the specimen so as to minimize the notching andof the specimen so as to minimize the notching and
cutting effect of the teeth. One of the methods used iscutting effect of the teeth. One of the methods used is
tinning, in which the gripped portions are cleaned,tinning, in which the gripped portions are cleaned,
fluxed, and coated by multiple dips in molten tin alloyfluxed, and coated by multiple dips in molten tin alloy
held just above the melting point. Another method of held just above the melting point. Another method of
preparation is encasing the gripped portions in metalpreparation is encasing the gripped portions in metal
tubing or flexible conduit, using epoxy resin as thetubing or flexible conduit, using epoxy resin as the
IS 14268 : 2017IS 14268 : 2017
B-1 B-1 NOMINAL CRONOMINAL CRO SS-SECTIONAL AREASS-SECTIONAL AREA
The strand sample shall be unraveled to separateThe strand sample shall be unraveled to separate
individual wires. The diameter of individual wires, thatindividual wires. The diameter of individual wires, that
is, six surrounding wires and one centre wire of theis, six surrounding wires and one centre wire of the
strand shall be measured and the cross-sectional areastrand shall be measured and the cross-sectional area
of each wire shall then be computed. The sum of theof each wire shall then be computed. The sum of the
areas of individual wires is the nominal cross-sectionalareas of individual wires is the nominal cross-sectional
area of the strand.area of the strand.
ANNEX BANNEX B
((TableTable2)2)
MEASUREMENT OF NOMINAL CROSS-SECTIONAL AREA AND NOM INALMEASUREMENT OF NOMINAL CROSS-SECTIONAL AREA AND NOM INAL
MASS PER UNIT LENGTH OF STRANDMASS PER UNIT LENGTH OF STRAND
C-1C-1 The true mechanical properties of the strand are The true mechanical properties of the strand are
determined by a test in which fracture of the specimendetermined by a test in which fracture of the specimen
occurs in the free span between the jaws of the testingoccurs in the free span between the jaws of the testing
machine. Therefore, it is desirable to establish a testmachine. Therefore, it is desirable to establish a test
procedure with suitable apparatus that consistentlyprocedure with suitable apparatus that consistently
produces such results. Due to inherent physicalproduces such results. Due to inherent physical
characteristics of individual machines, it is not practicalcharacteristics of individual machines, it is not practical
to recommend a universal gripping procedure that isto recommend a universal gripping procedure that is
suitable for all testing machines. Therefore, it issuitable for all testing machines. Therefore, it is
necessary to determine which of the methods of necessary to determine which of the methods of
gripping described below is most suitable for the testinggripping described below is most suitable for the testing
equipment available.equipment available.
C-1.1 C-1.1 Special Grips with Special Grips with Smooth, Semi-CylindSmooth, Semi-Cylindricalrical
GroovesGrooves
The radius of curvature of the grooves is approximatelyThe radius of curvature of the grooves is approximately
the same as the radius of the strthe same as the radius of the strand being tested, and isand being tested, and is
located 0.8 mm above the flat face of the grip. Thislocated 0.8 mm above the flat face of the grip. This
prevents the two grips from closing tightly when theprevents the two grips from closing tightly when the
specimen is in place. The grooves and the grippedspecimen is in place. The grooves and the gripped
portions of the specimen are coated with an abrasiveportions of the specimen are coated with an abrasive
slurry which holds the specimen in the slurry which holds the specimen in the smooth grooves,smooth grooves,
preventing slippage. The slurry consists of abrasive,preventing slippage. The slurry consists of abrasive,
such as Grade 3-F aluminium oxide and a carrier suchsuch as Grade 3-F aluminium oxide and a carrier such
as water or glycerin.as water or glycerin.
C-1.2 C-1.2 Standard V-Grips Standard V-Grips with Serrated with Serrated TeethTeeth
The number of teeth should be approximately 6 toThe number of teeth should be approximately 6 to
B-2 B-2 NOMINAL MASS NOMINAL MASS PER UNIT LENGPER UNIT LENG TH OFTH OF
STRANDSTRAND
A sample of 100 cm length shall be cut and its massA sample of 100 cm length shall be cut and its mass
shall be measured, in kg. The length of the core wireshall be measured, in kg. The length of the core wire
in that sample shall then be measured, in metres. Thein that sample shall then be measured, in metres. The
nominal mass per unit length of a seven wire strand, innominal mass per unit length of a seven wire strand, in
kg/m shall be the ratio of the obtained mass of thekg/m shall be the ratio of the obtained mass of the
sample to the measured length of the centre/core wire.sample to the measured length of the centre/core wire.
ANNEX CANNEX C
((ClauseClause6.2.1)6.2.1)
SUGGESTED METHODS OF GRIPPING FOR TENSILE TESTING O F SUGGESTED METHODS OF GRIPPING FOR TENSILE TESTING O F STRANDSSTRANDS
1212per centimeper centimetre and the minimum effetre and the minimum effective grippinctive grippingg
length should be approximately 10 cm.length should be approximately 10 cm.
C-1.3 C-1.3 Standard V-GripStandard V-Grips with Serrated Teeth s with Serrated Teeth UsingUsing
Cushioning MaterialCushioning Material
The number of teeth and minimum effective grippingThe number of teeth and minimum effective gripping
length should be as given inlength should be as given inC-1.2C-1.2. In this method,. In this method,
some material is placed between the grips and thesome material is placed between the grips and the
specimen to minimize the notching effect of the teeth.specimen to minimize the notching effect of the teeth.
Materials like lead foil, aluminium foil, carborundumMaterials like lead foil, aluminium foil, carborundum
cloth, emery cloth, etc are being used for this purpose.cloth, emery cloth, etc are being used for this purpose.
The type and thickness of material required isThe type and thickness of material required is
dependent on the shape, condition, and coarseness of dependent on the shape, condition, and coarseness of
the teeth.the teeth.
C-1.4 C-1.4 Standard V-GripStandard V-Grips with Serrated Teeth s with Serrated Teeth UsingUsing
Special Preparation of the Gripped Portions of Special Preparation of the Gripped Portions of thethe
SpecimenSpecimen
The number of teeth and minimum effective grippingThe number of teeth and minimum effective gripping
length should be as given inlength should be as given inC-1.2C-1.2. In this method,. In this method,
some special preparatiosome special preparation is done in the gripped portionsn is done in the gripped portions
of the specimen so as to minimize the notching andof the specimen so as to minimize the notching and
cutting effect of the teeth. One of the methods used iscutting effect of the teeth. One of the methods used is
tinning, in which the gripped portions are cleaned,tinning, in which the gripped portions are cleaned,
fluxed, and coated by multiple dips in molten tin alloyfluxed, and coated by multiple dips in molten tin alloy
held just above the melting point. Another method of held just above the melting point. Another method of
preparation is encasing the gripped portions in metalpreparation is encasing the gripped portions in metal
tubing or flexible conduit, using epoxy resin as thetubing or flexible conduit, using epoxy resin as the
77
IS 14268 : 2017IS 14268 : 2017
bonding agent. The encased portion should bebonding agent. The encased portion should be
approximately twice the length of lay of the strand.approximately twice the length of lay of the strand.
C-1.5 C-1.5 Standard Sockets Standard Sockets of the Type of the Type Used for WireUsed for Wire
RopeRope
The gripped portions of the specimen are anchored inThe gripped portions of the specimen are anchored in
the sockets with zinc. The special procedures forthe sockets with zinc. The special procedures for
socketing usually employed in the wire rope industrysocketing usually employed in the wire rope industry
must be followed.must be followed.
C-1.6 C-1.6 Dead-End Dead-End Eye Eye SplicesSplices
These devices are available in sizes designed to fit These devices are available in sizes designed to fit eacheach
size of strand to be tested.size of strand to be tested.
C-1.7 C-1.7 Chucking Chucking DevicesDevices
Use of chucking devices of the type generallyUse of chucking devices of the type generally
employed for applying tension to strands in castingemployed for applying tension to strands in casting
beds is not recommended for testing purposes.beds is not recommended for testing purposes.
NOTE — If the molten-metal temperatures employed duringNOTE — If the molten-metal temperatures employed during
hot-dip tinning or socketing with material are too high, overhot-dip tinning or socketing with material are too high, over
approximately 370°C, the specimen may approximately 370°C, the specimen may be heat-affected withbe heat-affected with
a subsequent loss of strength and a subsequent loss of strength and ductility. Careful temperatureductility. Careful temperature
controls should be maintained, if such methods of specimencontrols should be maintained, if such methods of specimen
preparation as inpreparation as in C-1.4 C-1.4 and andC-1.5C-1.5are used.are used.
IS 14268 : 2017IS 14268 : 2017
bonding agent. The encased portion should bebonding agent. The encased portion should be
approximately twice the length of lay of the strand.approximately twice the length of lay of the strand.
C-1.5 C-1.5 Standard Sockets Standard Sockets of the Type of the Type Used for WireUsed for Wire
RopeRope
The gripped portions of the specimen are anchored inThe gripped portions of the specimen are anchored in
the sockets with zinc. The special procedures forthe sockets with zinc. The special procedures for
socketing usually employed in the wire rope industrysocketing usually employed in the wire rope industry
must be followed.must be followed.
C-1.6 C-1.6 Dead-End Dead-End Eye Eye SplicesSplices
These devices are available in sizes designed to fit These devices are available in sizes designed to fit eacheach
size of strand to be tested.size of strand to be tested.
C-1.7 C-1.7 Chucking Chucking DevicesDevices
Use of chucking devices of the type generallyUse of chucking devices of the type generally
employed for applying tension to strands in castingemployed for applying tension to strands in casting
beds is not recommended for testing purposes.beds is not recommended for testing purposes.
NOTE — If the molten-metal temperatures employed duringNOTE — If the molten-metal temperatures employed during
hot-dip tinning or socketing with material are too high, overhot-dip tinning or socketing with material are too high, over
approximately 370°C, the specimen may approximately 370°C, the specimen may be heat-affected withbe heat-affected with
a subsequent loss of strength and a subsequent loss of strength and ductility. Careful temperatureductility. Careful temperature
controls should be maintained, if such methods of specimencontrols should be maintained, if such methods of specimen
preparation as inpreparation as in C-1.4 C-1.4 and andC-1.5C-1.5are used.are used.
88
IS 14268 : 2017IS 14268 : 2017
ANNEX DANNEX D
((Foreword Foreword ))
COMMITTEE COMPOSITIONCOMMITTEE COMPOSITION
Concrete Reinforcement Sectional Committee, CED 54Concrete Reinforcement Sectional Committee, CED 54
OOrrggaanniizzaattiioonn RReepprreesseennttaattiivvee((ss))
In Personal Capacity (In Personal Capacity ( No. No. 17, 17, Nalanda Nalanda Apartments, Apartments, D-Block,D-Block, SSHRIHRIG. G. SSHARANHARAN((ChairmanChairman))
VikaspuriVikaspuri,, New Delhi 110018 New Delhi 110018))
BBhhiillaai i SStteeeel l PPllaannt t ((SSAAIILL)), , BBhhiillaaii SSHRIHRI U. K. B U. K. BHALLAHALLA
SSHRIHRISSANJAYANJAYKKAMRAAMRA(( Alternate Alternate))
CCeennttrraal l BBuuiillddiinng g RReesseeaarrcch h IInnssttiittuutte e ((CCSSIIRR)), , RRoooorrkkeeee DDRRB. B. KKAMESHWARAMESHWAR RRAOAO
SSHRIHRI S. R. K S. R. KARADEARADE(( Alternate Alternate))
CCeennttrraal El Elleeccttrroocch eh emmiiccaal Rl Reesseeaarrcch Ih Innssttiittuuttee, (, (C SC SIIRR)), K, Kaarraaiikkuud id i SSHRIHRI K. K. SSARAVANANARAVANAN
SSHRIHRI A. K. P A. K. PARANDEARANDE(( Alternate Alternate))
CCeennttrraal l PPuubblliic c WWoorrkks s DDeeppaarrttmmeenntt, , NNeew w DDeellhhii SSHRIHRI A. K. G A. K. GARGARG
SSHRIHRIMMANUANUAAMITABHMITABH(( Alternate Alternate))
CCeennttrraal l RRooaad d RReesseeaarrcch h IInnssttiittuuttee, , ((CCSSIIRR)), , NNeew w DDeellhhii DDIRECTORIRECTOR
CCeennttrraal l WWaatteer r CCoommmmiissssiioonn, , NNeew w DDeellhhii DDIRECTORIRECTOR (HCD-NW&S) (HCD-NW&S)
DDIRECTORIRECTOR (HCD-N&W) ( (HCD-N&W) ( Alternate Alternate))
CCoonnssttrruuccttiioon n IInndduussttrry y DDeevveellooppmmeennt t CCoouunncciill, , NNeew w DDeellhhii SSHRIHRI P. R. S P. R. SWARUPWARUP
SSHRIHRISSUNILUNILMMAHAJANAHAJAN(( Alternate Alternate))
DDeellhhi i CCoolllleegge e oof f EEnnggiinneeeerriinngg, , DDeellhhii DDRR A. K. G A. K. GUPTAUPTA
DDeellhhi i DDeevveellooppmmeennt t AAuutthhoorriittyy, , NNeew w DDeellhhii SSHRIHRI G. R. S G. R. SHIROMANIHIROMANI
SSHRIHRILLACHHMANACHHMANSSINGHINGH(( Alternate Alternate))
DeDelhlhi Ti Touourirism sm anand Td Traransnspoportrtatatioion Dn Devevelelopopmement nt CoCorprpororatatioion Ln Ltdtd,, SSHRIHRIPPREADEEPREADEEPGGARGARG
New DelhiNew Delhi
DeDepapartrtmement nt of of ScScieiencnce ae and nd TeTechchnonolology gy (F(Fly ly AsAsh Uh Uninit)t), N, New ew DeDelhlhii DDRRVVIMALIMALKKUMARUMAR
DDeexxttrra a IInnddiia a PPvvt t LLttdd, , MMuummbbaaii SSHRIHRISSUNILUNILDDESAIESAI
SSHRIHRIJJITENDRAITENDRAH. H. PPATHAKATHAK(( Alternate Alternate))
DDuurrggaappuur r SStteeeel l PPllaannt t ((SSAAIILL)), , DDuurrggaappuurr DDRRAASIMSIMKKUMARUMARRRAYAY
SSHRIHRIMMANOJANOJSSINGHINGH(( Alternate Alternate))
EEnnggiinneeeerrs s IInnddiia a LLiimmiitteedd, , NNeew w DDeellhhii SSHRIHRI P. K. M P. K. MITTALITTAL
SSHRIHRI R RAJANJIAJANJI S SRIVASTAVARIVASTAVA ( ( Alternate Alternate))
GGaammmmoon n IInnddiia a LLiimmiitteedd, , MMuummbbaaii SSHRIHRI V. N. H V. N. HEGGADEEGGADE
SSHRIHRISSUDEESHUDEESHRRAJENDRANAJENDRAN(( Alternate Alternate))
IInnddiiaan n AAssssoocciiaattiioon n oof f SSttrruuccttuurraal l EEnnggiinneeeerrss, , NNeew w DDeellhhii SSHRIHRIHHARIARIOOMMGGUPTAUPTA
SSHRIHRIMMANOJANOJK. K. MMITTALITTAL(( Alternate Alternate))
IInnddiiaan n IInnssttiittuutte e oof f TTeecchhnnoollooggy y DDeellhhii, , NNeew w DDeellhhii PPROFROF A. K. N A. K. NAGPALAGPAL
PPROFROFB. B. BBHATTACHARJEEHATTACHARJEE (( Alternate Alternate))
IInnddiiaan n SSttaaiinnlleesss s SStteeeel l DDeevveellooppmmeennt t AAssssoocciiaattiioonn, , NNeew w DDeellhhii SSHRIHRIRRAMESHAMESHR. R. GGOPALOPAL
IInsnstititututte e of of SSteteel el DDeveveeloloppmement nt aand nd GGrorowwth th ((ININSSDDAGAG), ), KoKollkakatata DDRRJJAYANTAAYANTAK. K. SSAHAAHA
SSHRIHRIAARIJITRIJITGGUHAUHA(( Alternate Alternate))
LLaarrsseen n aannd d TToouubbrro o LLiimmiitteed d ((EECCC C DDiivviissiioonn)), , CChheennnnaaii SSHRIHRIS. S. KKANAPPANANAPPAN
SSHRIHRISSTHALADIPTITHALADIPTISSAHAAHA(( Alternate Alternate))
MMEECCOON N LLiimmiitteedd, , RRaanncchhii SSHRIHRIU. U. CCHAKRABORTYHAKRABORTY
SSHRIHRI J. K. J J. K. JHAHA(( Alternate Alternate))
MMiilliittaarry y EEnnggiinneeeer r SSeerrvviiccee, , EEnnggiin en eeerr--iinn--CCh ih ieeff’’s s BBrraanncchh, , AArrmmyy BBRIGRIGRRAJESHAJESHTTYAGIYAGI
HHeeaaddqquuaarrtteerrss, , NNeew w DDeellhhii SSHRIHRIRRAVIAVISSINHAINHA(( Alternate Alternate))
MiMininiststry ry of of ShShipippipingng, , RoRoad ad TrTrananspsporort t anand d HiHighghwawaysys, , NeNew w DeDelhlhii SSHRIHRI A. K. S A. K. SHARMAHARMA
SSHRIHRI S. K. M S. K. MARWAHARWAH(( Alternate Alternate))
MMiinniissttrry y oof f SStteeeell, , NNeew w DDeellhhii SSHRIHRI A. C. R. D A. C. R. DASAS
SSHRIHRI B. D. G B. D. GHOSHHOSH(( Alternate Alternate))
NaNatitiononal al CoCoununcicil l fofor r CeCemement nt anand d BuBuilildiding ng MaMateteririalals, s, BaBallllababgagarhrh SSHRIHRI V. V.V. V. AARORARORA
SSHRIHRIS. S. SSHARMAHARMA(( Alternate Alternate))
IS 14268 : 2017IS 14268 : 2017
ANNEX DANNEX D
((Foreword Foreword ))
COMMITTEE COMPOSITIONCOMMITTEE COMPOSITION
Concrete Reinforcement Sectional Committee, CED 54Concrete Reinforcement Sectional Committee, CED 54
OOrrggaanniizzaattiioonn RReepprreesseennttaattiivvee((ss))
In Personal Capacity (In Personal Capacity ( No. No. 17, 17, Nalanda Nalanda Apartments, Apartments, D-Block,D-Block, SSHRIHRIG. G. SSHARANHARAN((ChairmanChairman))
VikaspuriVikaspuri,, New Delhi 110018 New Delhi 110018))
BBhhiillaai i SStteeeel l PPllaannt t ((SSAAIILL)), , BBhhiillaaii SSHRIHRI U. K. B U. K. BHALLAHALLA
SSHRIHRISSANJAYANJAYKKAMRAAMRA(( Alternate Alternate))
CCeennttrraal l BBuuiillddiinng g RReesseeaarrcch h IInnssttiittuutte e ((CCSSIIRR)), , RRoooorrkkeeee DDRRB. B. KKAMESHWARAMESHWAR RRAOAO
SSHRIHRI S. R. K S. R. KARADEARADE(( Alternate Alternate))
CCeennttrraal El Elleeccttrroocch eh emmiiccaal Rl Reesseeaarrcch Ih Innssttiittuuttee, (, (C SC SIIRR)), K, Kaarraaiikkuud id i SSHRIHRI K. K. SSARAVANANARAVANAN
SSHRIHRI A. K. P A. K. PARANDEARANDE(( Alternate Alternate))
CCeennttrraal l PPuubblliic c WWoorrkks s DDeeppaarrttmmeenntt, , NNeew w DDeellhhii SSHRIHRI A. K. G A. K. GARGARG
SSHRIHRIMMANUANUAAMITABHMITABH(( Alternate Alternate))
CCeennttrraal l RRooaad d RReesseeaarrcch h IInnssttiittuuttee, , ((CCSSIIRR)), , NNeew w DDeellhhii DDIRECTORIRECTOR
CCeennttrraal l WWaatteer r CCoommmmiissssiioonn, , NNeew w DDeellhhii DDIRECTORIRECTOR (HCD-NW&S) (HCD-NW&S)
DDIRECTORIRECTOR (HCD-N&W) ( (HCD-N&W) ( Alternate Alternate))
CCoonnssttrruuccttiioon n IInndduussttrry y DDeevveellooppmmeennt t CCoouunncciill, , NNeew w DDeellhhii SSHRIHRI P. R. S P. R. SWARUPWARUP
SSHRIHRISSUNILUNILMMAHAJANAHAJAN(( Alternate Alternate))
DDeellhhi i CCoolllleegge e oof f EEnnggiinneeeerriinngg, , DDeellhhii DDRR A. K. G A. K. GUPTAUPTA
DDeellhhi i DDeevveellooppmmeennt t AAuutthhoorriittyy, , NNeew w DDeellhhii SSHRIHRI G. R. S G. R. SHIROMANIHIROMANI
SSHRIHRILLACHHMANACHHMANSSINGHINGH(( Alternate Alternate))
DeDelhlhi Ti Touourirism sm anand Td Traransnspoportrtatatioion Dn Devevelelopopmement nt CoCorprpororatatioion Ln Ltdtd,, SSHRIHRIPPREADEEPREADEEPGGARGARG
New DelhiNew Delhi
DeDepapartrtmement nt of of ScScieiencnce ae and nd TeTechchnonolology gy (F(Fly ly AsAsh Uh Uninit)t), N, New ew DeDelhlhii DDRRVVIMALIMALKKUMARUMAR
DDeexxttrra a IInnddiia a PPvvt t LLttdd, , MMuummbbaaii SSHRIHRISSUNILUNILDDESAIESAI
SSHRIHRIJJITENDRAITENDRAH. H. PPATHAKATHAK(( Alternate Alternate))
DDuurrggaappuur r SStteeeel l PPllaannt t ((SSAAIILL)), , DDuurrggaappuurr DDRRAASIMSIMKKUMARUMARRRAYAY
SSHRIHRIMMANOJANOJSSINGHINGH(( Alternate Alternate))
EEnnggiinneeeerrs s IInnddiia a LLiimmiitteedd, , NNeew w DDeellhhii SSHRIHRI P. K. M P. K. MITTALITTAL
SSHRIHRI R RAJANJIAJANJI S SRIVASTAVARIVASTAVA ( ( Alternate Alternate))
GGaammmmoon n IInnddiia a LLiimmiitteedd, , MMuummbbaaii SSHRIHRI V. N. H V. N. HEGGADEEGGADE
SSHRIHRISSUDEESHUDEESHRRAJENDRANAJENDRAN(( Alternate Alternate))
IInnddiiaan n AAssssoocciiaattiioon n oof f SSttrruuccttuurraal l EEnnggiinneeeerrss, , NNeew w DDeellhhii SSHRIHRIHHARIARIOOMMGGUPTAUPTA
SSHRIHRIMMANOJANOJK. K. MMITTALITTAL(( Alternate Alternate))
IInnddiiaan n IInnssttiittuutte e oof f TTeecchhnnoollooggy y DDeellhhii, , NNeew w DDeellhhii PPROFROF A. K. N A. K. NAGPALAGPAL
PPROFROFB. B. BBHATTACHARJEEHATTACHARJEE (( Alternate Alternate))
IInnddiiaan n SSttaaiinnlleesss s SStteeeel l DDeevveellooppmmeennt t AAssssoocciiaattiioonn, , NNeew w DDeellhhii SSHRIHRIRRAMESHAMESHR. R. GGOPALOPAL
IInsnstititututte e of of SSteteel el DDeveveeloloppmement nt aand nd GGrorowwth th ((ININSSDDAGAG), ), KoKollkakatata DDRRJJAYANTAAYANTAK. K. SSAHAAHA
SSHRIHRIAARIJITRIJITGGUHAUHA(( Alternate Alternate))
LLaarrsseen n aannd d TToouubbrro o LLiimmiitteed d ((EECCC C DDiivviissiioonn)), , CChheennnnaaii SSHRIHRIS. S. KKANAPPANANAPPAN
SSHRIHRISSTHALADIPTITHALADIPTISSAHAAHA(( Alternate Alternate))
MMEECCOON N LLiimmiitteedd, , RRaanncchhii SSHRIHRIU. U. CCHAKRABORTYHAKRABORTY
SSHRIHRI J. K. J J. K. JHAHA(( Alternate Alternate))
MMiilliittaarry y EEnnggiinneeeer r SSeerrvviiccee, , EEnnggiin en eeerr--iinn--CCh ih ieeff’’s s BBrraanncchh, , AArrmmyy BBRIGRIGRRAJESHAJESHTTYAGIYAGI
HHeeaaddqquuaarrtteerrss, , NNeew w DDeellhhii SSHRIHRIRRAVIAVISSINHAINHA(( Alternate Alternate))
MiMininiststry ry of of ShShipippipingng, , RoRoad ad TrTrananspsporort t anand d HiHighghwawaysys, , NeNew w DeDelhlhii SSHRIHRI A. K. S A. K. SHARMAHARMA
SSHRIHRI S. K. M S. K. MARWAHARWAH(( Alternate Alternate))
MMiinniissttrry y oof f SStteeeell, , NNeew w DDeellhhii SSHRIHRI A. C. R. D A. C. R. DASAS
SSHRIHRI B. D. G B. D. GHOSHHOSH(( Alternate Alternate))
NaNatitiononal al CoCoununcicil l fofor r CeCemement nt anand d BuBuilildiding ng MaMateteririalals, s, BaBallllababgagarhrh SSHRIHRI V. V.V. V. AARORARORA
SSHRIHRIS. S. SSHARMAHARMA(( Alternate Alternate))
99
IS 14268 : 2017IS 14268 : 2017
OOrrggaanniizzaattiioon n RReepprreesseennttaattiivvee((ss))
NNaattiioonnaal l HHiigghhwwaayys s AAuutthhoorriitty y oof f IInnddiiaa, , NNeew w DDeellhhii SSHRIHRI M. P. S M. P. SHARMAHARMA
SSHRIHRIK. K. VVENKATARAMANAENKATARAMANA (( Alternate Alternate))
NNaattiioonnaal l MMeettaalllluurrggiiccaal l LLaabboorraattoorryy, , JJaammsshheeddppuurr SSHRIHRI D. D. N. S D. D. N. SINGHINGH
NNTTPPC C LLttdd, , NNeew w DDeellhhii SSHRIHRI A. K. B A. K. BANSALANSAL
NNuucclleeaar r PPoowweer r CCoorrppoorraattiioon n IInnddiia a LLiimmiitteedd, , MMuummbbaaii SSHRIHRI Y. T. P Y. T. PRAVEENCHANDRARAVEENCHANDRA
SSHRIHRI R. N. S R. N. SARANGIARANGI(( Alternate Alternate))
OOuuttookkuummppu u IInnddiia a PPvvt t LLttdd, , NNeew w DDeellhhii SSHRIHRIYYATINDERATINDERPPALALSSINGHINGHSSURIURI
SSHRIHRIPPURUSHOTHAMAURUSHOTHAMA RREDDYEDDY(( Alternate Alternate))
PP..SS..LL. . LLiimmiitteedd, , MMuummbbaaii SSHRIHRIR. R. RRADHAKRISHNANADHAKRISHNAN
SSHRIHRIKKUNALUNALPPATELATEL(( Alternate Alternate))
RRaasshhttrriiyya a IIssppaat t NNiiggaam m LLttdd, , VViissaakkhhaappaattnnaamm SSHRIHRIRRAVIAVISSUNDARUNDAR
SSHRIHRICCHHSSRINIVASARINIVASARRAOAO(( Alternate Alternate))
RReesseeaarrcchh, , DDeessiiggnns s aannd d SSttaannddaarrdds s OOrrggaanniizzaattiioon n ((MMiinniissttrry y ooff SSHRIHRIAANILNILKKUMARUMAR
RRaaiillwwaayyss)), , LLuucckknnooww SSHRIHRI A. K. P A. K. PANDEYANDEY(( Alternate Alternate))
SASAILIL-R-Reseseaearcrch anh and Ded Devevelolopmpmenent Cet Centntre fre for Ior Iroron ann and Std Steeeel, Rl, Rananchchii DDRRVVINODINODKKUMARUMAR
SSHRIHRID. D. KKARMAKARARMAKAR(( Alternate Alternate))
SSaarrddaar r SSaarroovvaar r NNaarrmmaadda a NNiiggaam m LLiimmiitteedd, , GGaannddhhiinnaaggaarr SSHRIHRIVVIVEKIVEKP. P. KKAPADIAAPADIA
DDRRMMUKESHBHAIUKESHBHAIB. B. JJOSHIOSHI(( Alternate Alternate))
SStteeeel l RRee--RRoolllliinng g MMiilllls s AAssssoocciiaattiioon n oof f IInnddiiaa, , KKoollkkaattaa SSHRIHRI B. M. B B. M. BERIWALAERIWALA
CCOLOLSSURENDRAURENDRASSINGHINGH(( Alternate Alternate))
SSttrruuccttuurraal l EEnnggiinneeeerriinng g RReesseeaarrcch h CCeennttrree, , ((CCSSIIRR)), , CChheennnnaaii SSHRIHRI T. S. K T. S. KRISHNAMOORTHYRISHNAMOORTHY
DDRR B. H. B B. H. BHARATKUMARHARATKUMAR (( Alternate Alternate))
SSTTUUP P CCoonnssuullttaanntts s LLiimmiitteedd, , MMuummbbaaii DDRR N NIRMALYAIRMALYA B BHATTACHARYAYHATTACHARYAY
SSHRIHRIAAMITMITKKUMARUMARCCHAKRABORTYHAKRABORTY (( Alternate Alternate))
SSuunnffllaag g IIrroon n & & SStteeeel l CCoommppaanny y LLiimmiitteedd, , NNeew w DDeellhhii SSHRIHRIVVIPULIPULJJAINAIN
SSHRIHRIRROHITOHITKKUMARUMAR(( Alternate Alternate))
TTaatta a SStteeeel l LLiimmiitteedd, , JJaammsshheeddppuurr SSHRIHRIIINDRANILNDRANILCCHAKRABARTIHAKRABARTI
DDRRSSANDEEPANDEEPBBHATTACHARYYAHATTACHARYYA (( Alternate Alternate))
TTaatta a SStteeeel l LLttd d ((WWiirre e DDiivviissiioonn)), , MMuummbbaaii SSHRIHRISSHISHIRHISHIRV. V. DDESAIESAI
SSHRIHRIRRAKESHAKESHMMALHOTRAALHOTRA(( Alternate Alternate))
TToorrsstteeeel l RReesseeaarrcch h FFoouunnddaattiioon n iin n IInnddiiaa, , BBaannggaalloorree DDRRSSYEDYEDSSHAHIDHAHID
SSHRIHRI M. S. S M. S. SUDARSHANUDARSHAN(( Alternate Alternate))
In personal capacity (In personal capacity ( A-39/B, A-39/B, DDA DDA Flats, Flats, Munirka,Munirka, SSHRIHRI P. B. V P. B. VIJAYIJAY
New New Delhi Delhi 110067 110067 ))
In personal capacity (In personal capacity ( House House NoNo..2130, Sector 7D,2130, Sector 7D, SSHRIHRIHHARISHARISHJJULKAULKA
Faridabad 121006 Faridabad 121006 ))
BBIIS S DDiirreeccttoorraatte e GGeenneerraall SSHRIHRISSANJAYANJAYPPANTANT, Scientist ‘E’ and Head (Civil Engg), Scientist ‘E’ and Head (Civil Engg)
[Representing Director General ([Representing Director General (Ex-officioEx-officio)])]
Member Member SecretarySecretary
SSHRIMATIHRIMATIMMADHURIMAADHURIMAMMADHAVADHAV
Scientist ‘C’ (Civil Engg), BISScientist ‘C’ (Civil Engg), BIS
IS 14268 : 2017IS 14268 : 2017
OOrrggaanniizzaattiioon n RReepprreesseennttaattiivvee((ss))
NNaattiioonnaal l HHiigghhwwaayys s AAuutthhoorriitty y oof f IInnddiiaa, , NNeew w DDeellhhii SSHRIHRI M. P. S M. P. SHARMAHARMA
SSHRIHRIK. K. VVENKATARAMANAENKATARAMANA (( Alternate Alternate))
NNaattiioonnaal l MMeettaalllluurrggiiccaal l LLaabboorraattoorryy, , JJaammsshheeddppuurr SSHRIHRI D. D. N. S D. D. N. SINGHINGH
NNTTPPC C LLttdd, , NNeew w DDeellhhii SSHRIHRI A. K. B A. K. BANSALANSAL
NNuucclleeaar r PPoowweer r CCoorrppoorraattiioon n IInnddiia a LLiimmiitteedd, , MMuummbbaaii SSHRIHRI Y. T. P Y. T. PRAVEENCHANDRARAVEENCHANDRA
SSHRIHRI R. N. S R. N. SARANGIARANGI(( Alternate Alternate))
OOuuttookkuummppu u IInnddiia a PPvvt t LLttdd, , NNeew w DDeellhhii SSHRIHRIYYATINDERATINDERPPALALSSINGHINGHSSURIURI
SSHRIHRIPPURUSHOTHAMAURUSHOTHAMA RREDDYEDDY(( Alternate Alternate))
PP..SS..LL. . LLiimmiitteedd, , MMuummbbaaii SSHRIHRIR. R. RRADHAKRISHNANADHAKRISHNAN
SSHRIHRIKKUNALUNALPPATELATEL(( Alternate Alternate))
RRaasshhttrriiyya a IIssppaat t NNiiggaam m LLttdd, , VViissaakkhhaappaattnnaamm SSHRIHRIRRAVIAVISSUNDARUNDAR
SSHRIHRICCHHSSRINIVASARINIVASARRAOAO(( Alternate Alternate))
RReesseeaarrcchh, , DDeessiiggnns s aannd d SSttaannddaarrdds s OOrrggaanniizzaattiioon n ((MMiinniissttrry y ooff SSHRIHRIAANILNILKKUMARUMAR
RRaaiillwwaayyss)), , LLuucckknnooww SSHRIHRI A. K. P A. K. PANDEYANDEY(( Alternate Alternate))
SASAILIL-R-Reseseaearcrch anh and Ded Devevelolopmpmenent Cet Centntre fre for Ior Iroron ann and Std Steeeel, Rl, Rananchchii DDRRVVINODINODKKUMARUMAR
SSHRIHRID. D. KKARMAKARARMAKAR(( Alternate Alternate))
SSaarrddaar r SSaarroovvaar r NNaarrmmaadda a NNiiggaam m LLiimmiitteedd, , GGaannddhhiinnaaggaarr SSHRIHRIVVIVEKIVEKP. P. KKAPADIAAPADIA
DDRRMMUKESHBHAIUKESHBHAIB. B. JJOSHIOSHI(( Alternate Alternate))
SStteeeel l RRee--RRoolllliinng g MMiilllls s AAssssoocciiaattiioon n oof f IInnddiiaa, , KKoollkkaattaa SSHRIHRI B. M. B B. M. BERIWALAERIWALA
CCOLOLSSURENDRAURENDRASSINGHINGH(( Alternate Alternate))
SSttrruuccttuurraal l EEnnggiinneeeerriinng g RReesseeaarrcch h CCeennttrree, , ((CCSSIIRR)), , CChheennnnaaii SSHRIHRI T. S. K T. S. KRISHNAMOORTHYRISHNAMOORTHY
DDRR B. H. B B. H. BHARATKUMARHARATKUMAR (( Alternate Alternate))
SSTTUUP P CCoonnssuullttaanntts s LLiimmiitteedd, , MMuummbbaaii DDRR N NIRMALYAIRMALYA B BHATTACHARYAYHATTACHARYAY
SSHRIHRIAAMITMITKKUMARUMARCCHAKRABORTYHAKRABORTY (( Alternate Alternate))
SSuunnffllaag g IIrroon n & & SStteeeel l CCoommppaanny y LLiimmiitteedd, , NNeew w DDeellhhii SSHRIHRIVVIPULIPULJJAINAIN
SSHRIHRIRROHITOHITKKUMARUMAR(( Alternate Alternate))
TTaatta a SStteeeel l LLiimmiitteedd, , JJaammsshheeddppuurr SSHRIHRIIINDRANILNDRANILCCHAKRABARTIHAKRABARTI
DDRRSSANDEEPANDEEPBBHATTACHARYYAHATTACHARYYA (( Alternate Alternate))
TTaatta a SStteeeel l LLttd d ((WWiirre e DDiivviissiioonn)), , MMuummbbaaii SSHRIHRISSHISHIRHISHIRV. V. DDESAIESAI
SSHRIHRIRRAKESHAKESHMMALHOTRAALHOTRA(( Alternate Alternate))
TToorrsstteeeel l RReesseeaarrcch h FFoouunnddaattiioon n iin n IInnddiiaa, , BBaannggaalloorree DDRRSSYEDYEDSSHAHIDHAHID
SSHRIHRI M. S. S M. S. SUDARSHANUDARSHAN(( Alternate Alternate))
In personal capacity (In personal capacity ( A-39/B, A-39/B, DDA DDA Flats, Flats, Munirka,Munirka, SSHRIHRI P. B. V P. B. VIJAYIJAY
New New Delhi Delhi 110067 110067 ))
In personal capacity (In personal capacity ( House House NoNo..2130, Sector 7D,2130, Sector 7D, SSHRIHRIHHARISHARISHJJULKAULKA
Faridabad 121006 Faridabad 121006 ))
BBIIS S DDiirreeccttoorraatte e GGeenneerraall SSHRIHRISSANJAYANJAYPPANTANT, Scientist ‘E’ and Head (Civil Engg), Scientist ‘E’ and Head (Civil Engg)
[Representing Director General ([Representing Director General (Ex-officioEx-officio)])]
Member Member SecretarySecretary
SSHRIMATIHRIMATIMMADHURIMAADHURIMAMMADHAVADHAV
Scientist ‘C’ (Civil Engg), BISScientist ‘C’ (Civil Engg), BIS
The major deviations are:The major deviations are:
a)a)The requiThe requirement forement for minimum r minimum diameter diameter of centraof central wire l wire of strand of strand is loweis lower and sr and strand contrand construction struction isis
different, in view of the prevailing manufacturing practices;different, in view of the prevailing manufacturing practices;
b)b)Nominal dNominal diameter oiameter of strand f strand with appliwith applicable tocable tolerance hlerance has been as been specified specified and nominand nominal mass al mass has beehas beenn
given for information only;given for information only;
c)c)0.2 perce0.2 percent proof lnt proof load has oad has been spebeen specified in cified in line witline with similar h similar requiremerequirement in othent in other steel r steel reinforcemreinforcementent
standards; andstandards; and
d)d)RequiremeRequirements sunts such as ch as for cracfor crack and k and curvature curvature of stranof strand have d have not benot been speen specified.cified.
The composition of the Committee responsible for the formulation of this standard is given in Annex D.The composition of the Committee responsible for the formulation of this standard is given in Annex D.
For the purpose of deciding whether a particular requirement of this standard is complied with, the final value,For the purpose of deciding whether a particular requirement of this standard is complied with, the final value,
observed or observed or calculated, calculated, expressing texpressing the result of a he result of a test or analytest or analysis, shall bsis, shall be rounded off in e rounded off in accordance accordance with ISwith IS22::19601960
‘Rules for rounding off numerical val‘Rules for rounding off numerical values (ues (revised revised )’)’.. The number of significant places retained in the roun The number of significant places retained in the rounded off ded off
value should be the same as that of the specified value in this standard.value should be the same as that of the specified value in this standard.
((Continued Continued from from second cover second cover ))
a)a)The requiThe requirement forement for minimum r minimum diameter diameter of centraof central wire l wire of strand of strand is loweis lower and sr and strand contrand construction struction isis
different, in view of the prevailing manufacturing practices;different, in view of the prevailing manufacturing practices;
b)b)Nominal dNominal diameter oiameter of strand f strand with appliwith applicable tocable tolerance hlerance has been as been specified specified and nominand nominal mass al mass has beehas beenn
given for information only;given for information only;
c)c)0.2 perce0.2 percent proof lnt proof load has oad has been spebeen specified in cified in line witline with similar h similar requiremerequirement in othent in other steel r steel reinforcemreinforcementent
standards; andstandards; and
d)d)RequiremeRequirements sunts such as ch as for cracfor crack and k and curvature curvature of stranof strand have d have not benot been speen specified.cified.
The composition of the Committee responsible for the formulation of this standard is given in Annex D.The composition of the Committee responsible for the formulation of this standard is given in Annex D.
For the purpose of deciding whether a particular requirement of this standard is complied with, the final value,For the purpose of deciding whether a particular requirement of this standard is complied with, the final value,
observed or observed or calculated, calculated, expressing texpressing the result of a he result of a test or analytest or analysis, shall bsis, shall be rounded off in e rounded off in accordance accordance with ISwith IS22::19601960
‘Rules for rounding off numerical val‘Rules for rounding off numerical values (ues (revised revised )’)’.. The number of significant places retained in the roun The number of significant places retained in the rounded off ded off
value should be the same as that of the specified value in this standard.value should be the same as that of the specified value in this standard.
((Continued Continued from from second cover second cover ))
Bureau of Indian StandardsBureau of Indian Standards
BIS is a statutory institution established under theBIS is a statutory institution established under the Bureau of Indian Standards Act Bureau of Indian Standards Act , 1986 to promote, 1986 to promote
harmonious development of the activities of standardization, marking and quality certification of goodsharmonious development of the activities of standardization, marking and quality certification of goods
and attending to connected matters in the country.and attending to connected matters in the country.
CopyrightCopyright
BIS has the copyright of all its publications. No part of these publications may be reproduced in any formBIS has the copyright of all its publications. No part of these publications may be reproduced in any form
without the prior permission in writing of BIS. This does not preclude the free use, in the course of without the prior permission in writing of BIS. This does not preclude the free use, in the course of
implementing the standard, of necessary details, such as symbols and sizes, type or grade designations.implementing the standard, of necessary details, such as symbols and sizes, type or grade designations.
Enquiries relating to copyright be addressed to the Director (Publications), BIS.Enquiries relating to copyright be addressed to the Director (Publications), BIS.
Review of Indian StandardsReview of Indian Standards
Amendments are issued to standards as the need arises on the basis of comments. Standards are also reviewedAmendments are issued to standards as the need arises on the basis of comments. Standards are also reviewed
periodically; a standard along with amendments is reaffirmed when such review indicates that no changes areperiodically; a standard along with amendments is reaffirmed when such review indicates that no changes are
needed; if the review indicates that changes are needed, it is taken up for revision. Users of Indian Standardsneeded; if the review indicates that changes are needed, it is taken up for revision. Users of Indian Standards
should ascertain that they are in possession of the latest amendments or edition by referring to the latest issue of should ascertain that they are in possession of the latest amendments or edition by referring to the latest issue of
‘BIS Catalogu‘BIS Catalogue’ and ‘Standardse’ and ‘Standards: Monthly Addition: Monthly Additions’.s’.
This Indian Standard has been developed from Doc No.: CED 54 (7822).This Indian Standard has been developed from Doc No.: CED 54 (7822).
Amendments Issued Since PublicationAmendments Issued Since Publication
AAmmeennd d NNoo.. DDaatte e oof f IIssssuuee TTeexxt t AAffffeecctteedd
BUREAU OF INDIAN STANDARDSBUREAU OF INDIAN STANDARDS
Headquarters:Headquarters:
Manak Bhavan, 9 Bahadur Shah Manak Bhavan, 9 Bahadur Shah Zafar Marg, New Delhi 110002Zafar Marg, New Delhi 110002
TelephonesTelephones: 23: 2323230130131, 21, 23233233373375, 25, 232332394094022 Website Website: www.bis.org.in: www.bis.org.in
Regional Offices:Regional Offices: Telephones Telephones
CCeennttrraall::MMaannaak k BBhhaavvaann, , 9 9 BBaahhaadduur r SShhaah h ZZaaffaar r MMaarrgg 2233223 3 77661177
NEW DELHI 110002 NEW DELHI 110002 2323 38412323 3841
EEaasstteerrnn::11//114 4 CC..II..TT. . SScchheemme e VVIII I MM, , VV. . II. . PP. . RRooaadd, , KKaannkkuurrggaacchhii 2233337 7 88449999, , 2233337 7 88556611
KKOOLLKKAATTA A 770000005544 2233337 7 88662266, , 2233337 7 99112200
Northern Northern::Plot No. 4-A, Sector 27-B, Madhya MarPlot No. 4-A, Sector 27-B, Madhya Marg, CHANDIGARH 160019g, CHANDIGARH 160019 26265020650206
26526502029090
SSoouutthheerrnn::CC..II..TT. . CCaammppuuss, , IIV V CCrroosss s RRooaadd, , CCHHEENNNNAAI I 660000111133 2222554 4 11221166, , 2222554 4 11444422
2254 2519, 2254 23152254 2519, 2254 2315
WWeesstteerrnn::MMaannaakkaallaayyaa, , EE9 9 MMIIDDCC, , MMaarrooll, , AAnnddhheerri i ((EEaasstt)) 2288332 2 99229955, , 2288332 2 77885588
MMUUMMBBAAI I 440000009933 2288332 2 77889911, , 2288332 2 77889922
Branches:Branches:AHMEDABAD. BENGALURU. BHOPAL. BHUBANESHWAR. COIMBAT ORE.AHMEDABAD. BENGALURU. BHOPAL. BHUBANESHWAR. COIMBAT ORE.
DEHRADUN. DURGAPUR. FARIDABAD. GHAZIABAD. GUWAHATI.DEHRADUN. DURGAPUR. FARIDABAD. GHAZIABAD. GUWAHATI.
H Y D E R A B A D . J A I P UR . J AM S H E D P U R . K O C H I . L U C K N O W . N A G PU R .H Y D E R A B A D . J A I P UR . J AM S H E D P U R . K O C H I . L U C K N O W . N A G PU R .
PARWANOO. PATNA. PUNE. RAIPUR. RAJKOT. VISAKHAPATNA M.PARWANOO. PATNA. PUNE. RAIPUR. RAJKOT. VISAKHAPATNA M.
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Published by BIS, New DelhiPublished by BIS, New Delhi
BIS is a statutory institution established under theBIS is a statutory institution established under the Bureau of Indian Standards Act Bureau of Indian Standards Act , 1986 to promote, 1986 to promote
harmonious development of the activities of standardization, marking and quality certification of goodsharmonious development of the activities of standardization, marking and quality certification of goods
and attending to connected matters in the country.and attending to connected matters in the country.
CopyrightCopyright
BIS has the copyright of all its publications. No part of these publications may be reproduced in any formBIS has the copyright of all its publications. No part of these publications may be reproduced in any form
without the prior permission in writing of BIS. This does not preclude the free use, in the course of without the prior permission in writing of BIS. This does not preclude the free use, in the course of
implementing the standard, of necessary details, such as symbols and sizes, type or grade designations.implementing the standard, of necessary details, such as symbols and sizes, type or grade designations.
Enquiries relating to copyright be addressed to the Director (Publications), BIS.Enquiries relating to copyright be addressed to the Director (Publications), BIS.
Review of Indian StandardsReview of Indian Standards
Amendments are issued to standards as the need arises on the basis of comments. Standards are also reviewedAmendments are issued to standards as the need arises on the basis of comments. Standards are also reviewed
periodically; a standard along with amendments is reaffirmed when such review indicates that no changes areperiodically; a standard along with amendments is reaffirmed when such review indicates that no changes are
needed; if the review indicates that changes are needed, it is taken up for revision. Users of Indian Standardsneeded; if the review indicates that changes are needed, it is taken up for revision. Users of Indian Standards
should ascertain that they are in possession of the latest amendments or edition by referring to the latest issue of should ascertain that they are in possession of the latest amendments or edition by referring to the latest issue of
‘BIS Catalogu‘BIS Catalogue’ and ‘Standardse’ and ‘Standards: Monthly Addition: Monthly Additions’.s’.
This Indian Standard has been developed from Doc No.: CED 54 (7822).This Indian Standard has been developed from Doc No.: CED 54 (7822).
Amendments Issued Since PublicationAmendments Issued Since Publication
AAmmeennd d NNoo.. DDaatte e oof f IIssssuuee TTeexxt t AAffffeecctteedd
BUREAU OF INDIAN STANDARDSBUREAU OF INDIAN STANDARDS
Headquarters:Headquarters:
Manak Bhavan, 9 Bahadur Shah Manak Bhavan, 9 Bahadur Shah Zafar Marg, New Delhi 110002Zafar Marg, New Delhi 110002
TelephonesTelephones: 23: 2323230130131, 21, 23233233373375, 25, 232332394094022 Website Website: www.bis.org.in: www.bis.org.in
Regional Offices:Regional Offices: Telephones Telephones
CCeennttrraall::MMaannaak k BBhhaavvaann, , 9 9 BBaahhaadduur r SShhaah h ZZaaffaar r MMaarrgg 2233223 3 77661177
NEW DELHI 110002 NEW DELHI 110002 2323 38412323 3841
EEaasstteerrnn::11//114 4 CC..II..TT. . SScchheemme e VVIII I MM, , VV. . II. . PP. . RRooaadd, , KKaannkkuurrggaacchhii 2233337 7 88449999, , 2233337 7 88556611
KKOOLLKKAATTA A 770000005544 2233337 7 88662266, , 2233337 7 99112200
Northern Northern::Plot No. 4-A, Sector 27-B, Madhya MarPlot No. 4-A, Sector 27-B, Madhya Marg, CHANDIGARH 160019g, CHANDIGARH 160019 26265020650206
26526502029090
SSoouutthheerrnn::CC..II..TT. . CCaammppuuss, , IIV V CCrroosss s RRooaadd, , CCHHEENNNNAAI I 660000111133 2222554 4 11221166, , 2222554 4 11444422
2254 2519, 2254 23152254 2519, 2254 2315
WWeesstteerrnn::MMaannaakkaallaayyaa, , EE9 9 MMIIDDCC, , MMaarrooll, , AAnnddhheerri i ((EEaasstt)) 2288332 2 99229955, , 2288332 2 77885588
MMUUMMBBAAI I 440000009933 2288332 2 77889911, , 2288332 2 77889922
Branches:Branches:AHMEDABAD. BENGALURU. BHOPAL. BHUBANESHWAR. COIMBAT ORE.AHMEDABAD. BENGALURU. BHOPAL. BHUBANESHWAR. COIMBAT ORE.
DEHRADUN. DURGAPUR. FARIDABAD. GHAZIABAD. GUWAHATI.DEHRADUN. DURGAPUR. FARIDABAD. GHAZIABAD. GUWAHATI.
H Y D E R A B A D . J A I P UR . J AM S H E D P U R . K O C H I . L U C K N O W . N A G PU R .H Y D E R A B A D . J A I P UR . J AM S H E D P U R . K O C H I . L U C K N O W . N A G PU R .
PARWANOO. PATNA. PUNE. RAIPUR. RAJKOT. VISAKHAPATNA M.PARWANOO. PATNA. PUNE. RAIPUR. RAJKOT. VISAKHAPATNA M.
{{
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Published by BIS, New DelhiPublished by BIS, New Delhi
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