Rbw

REINFORCED BRICK WORK

1. REINFORCED BRICKWORK
By: VATSHALYA KAUSHAL
Roll No.: 201911101010001
B.Arch 1
st
year 2
nd
Semester

2. REINFORCED BRICK
REINFORCED BRICK WORK IS THE
ONE IN WHICH THE BRICK
MASONRY IS STRENGHTENED BY
THE PROVISION OF MILD STEEL
BARS, HOOP IRON, EXPANDED MESS.

3. INTRODUCTION
●Reinforced brick work (RBW) consists of
brick masonry which incorporates steel
reinforcement embedded in mortar.
●This masonry has greatly increased
resistance to forces that produce tensile and
shear stresses.
●The reinforcement provides additional
tensile strength, allowing better use of brick
masonry's inherent compressive strength.
●The two materials complement each other,
resulting in an excellent structural material.

4. FIRST CLASS BRICK
●Well burnt table moulded brick
●Uniform in colour
●Uniform length and wide
●Sharp well defined edges
●Smooth surface without having any :
✔Flaws
✔Cracks
✔Stone grits

5. WROUGHT IRON FLAT BARS
●Two strips of hoop iron are used
per header brick
●One hoop iron per stretcher brick
●Steel flats may also be used in
place of hoop iron
●Its usual to reinforce every sixth
course

6. STEEL MESS
●Steel messes also known as EXMET
made from rolled steel plates
●Its expanded by machine and is known as
expanded EXMET
●Provided at every third course
●Available in widths of 65mm, 176mm and
230 to 305mm with thickness of
0.6mm,0.8mm and 1mm.
●Supplied in coils of 83m length

7. BRICK ARCHES, SLAB & BEAM
ARCH
SLAB
BEAM

8. CURING OF R.B.W.

The act of maintaining controlled conditions for freshly brick work for some definite period following
the placing and finishing operations to assure the proper hydration of cement and proper hardening of
brick work.
Methods of Curing:

●Retaining formwork
●Shading of brick work
●Covering of surfaces with cotton mats
●Continuous sprinklings of exposed surfaces
●Ponding method
●Membrane curing
●Steam curing
●Electrical method of curing

9. ●Ponding method: most efficient method of curing suitable
for construction of arches, roof slabs, lintel etc.
●Membrane curing: membrane serves as a physical barrier
to prevent loss of moisture from the brick work to be cured
●Steam curing: It leads to increase rate of strength
development
●Electrical method of curing: by passing alternate current of
low voltage

10. ADVANTAGE OF R.B.W. OVER R.C.C.
●Additional strength imparted to the masonry
●Low cost housing
●Low labor cost
●Reinforced brick beams and lintels allow the designer to achieve exposed brick on
the underside of these element.
●It plays an important role in earthquake more better than R.C.C.
●Brick retaining walls are often reinforced since such a work is cheaper than R.C.C

11. REASONS FOR DETORIATION
●Lower unit cement content.
●Presence of high chloride content
●Inadequate cement mortar cover to reinforcements
●Ingress of moisture
●Carbonation of mortar in the neighbourhood of steel

12. PREVENTION
●Basic principle of prevention of corrosion is to maintain passivity of
the embedded steel reinforcement by the high alkalinity.
●By dipping the bars in hot tar.
●In case of mess : the metal in the coil form is coated with oil and deep
in asphaltum paint.

13. THANK YOU