Determinación de la reología a traves del equipos DSR norma AASHTO-T315-19

Esta norma establece los procedimientos para realizar el ensayos de determianción del comportamiento reológico de los asfaltos en metodologías superpave, con el equipos Reómetro de Corte Dinámico - DSR, con el fin de realizar la evaluación a los parámetros de diseño y cumpimiento a las especificaciones técnicas del material asfáltico

1. ‘Standard Method of Test for

Determi

ing the Rheological

Properties of Asphalt Binder Using
a Dynamic Shear Rheometer (DSR)

AASHTO Designation: T 315-191

: 2b, Liquid Asphalt

Technical Subcommitte

Release: Group 3 (July)

AASHIO

‘American Association of State Highway and Transportation Officials
444 North Capitol Street N.W., Suite 249
Washington, D.C. 20001

2. Standard Method of Test for

Determining the Rheological
Properties of Asphalt Binder Using
a Dynamic Shear Rheometer (DSR)

AASHTO Designation: T 315-19" AASHIO
Technical Subcommittee: 2b, Liquid Asphalt

Release: Group 3 (July)

1
14

12.

1

14

‘SCOPE

"This test method cover the determination ofthe dynamic shat mods and pase ange of
pha binder when ested jane (slay) shear ing prall plate et game. is
“pliable o asphalt binder having dynande sear modula vl in he ange tom 100 Pl,
TO Pa This range in mods is tpical obtained betwen 6 and 38°C at an anlar uen
€ cas, This est med sine for determi he nen vscocis popes of
‘pnt binder a required or specification txing ands ot intended a a compran
rodar or the fl arcano isole propre € spl ner

‘This stand is pproprte fr unaged mei ot matralaged in accordance wih 240
md R28

‘Price mr inthe apt indented o prices with anges dimension es
‘han 250m

This standard may ¡volve cardos materials, operations and equip, Ta son does
purport nodes al of he sae cancers acute wh tee Ie the espns of
the sro ths procedure to each appropriate fey and hal practice and o determine
happy of rear tans ptr to

21

REFERENCED DOCUMENTS

AASITO Standard,
2 320, Performance Asphalt Binder

12K, Accleratd Aging of Aal inde Using a Presuized Aging Vessel (PAN)
1829, Grading Ver th Peformance Gade (PG) of an Ay Binder
= R66, Sampling Asphalt Materials

18 1240, Feet of Heat and Air a Moving Flo of Asphalt Binder (Rolling Thin-Film,
Oven Tes)

‘© T5314, Determining h rote Properties of All Binder in Dirt Tension (DT)

=

Tea AASHTO

‘ODP Amin Ain egy el Toc ie
ingiere Io e vaca dale o

3. 23.

ASTM Sander

‘C570, Standard Pac fr Pepsi Precision and Bis Siemens für Tet Meo for
Cancion Matis

217072170, Standard Test Med for Kinematic Visit of Aspals Bins)

2 D2171D2171M Standard Test Method for Vicos of Aphal y Vacuum Capillary
Viscometer

(= EI, Standard Spec for ASTM Liquid Glas Thermometers
17, Standard Tes Method for Inspection and VetiGeation of Thermonsers

1 E56}, Standard Practice for reparation and Use fa Ie-Poi Balas Reference

Deus dori Moro (DI Sod
45760 India Matin Resistance Thermometer ad Manu Tempertr emos

3.
a1
ar

32

san.

323.

324

328.

“TERMINOLOGY
Denton:

ph binder an halo cement hat is produced on parole esoo sec vor
hohe dion of reparto organi made

Desert o Terms Specific o This Sar

neigen thet until ite sulci id o remove he els o trio
nine.

colton process of checking the accuracy and precision ofa device using NIST taste
andar and making adjustment o dove where neccesary to comet operation or
prison and accu

‘complex shear oda (ri caclate by viding the absolute vale ofthe pesto
‘ar rss byte absolute velos of he peakpeak eer ta. Y.

ng tet schen sien formed etw the dye shear homer (DSR) tet plates
ftom at Binder rote payer to mescue fe temperature apa binder held
Bon ie plats The doy ts specimen i wed solely o deter temperate omens.

linear visos tin the conte of is specie les oa egion oF bear in which
‘he due din modulus independent of chew ses or srl

sing pce wit eel fie for which he ts samples Loaded elected frequency ud
stesso ai evel.

ous sear modu (67e complex sear mods mailed by the sie of He phase angle.
pues in degrees represent e component of he complex modula at ira messi of he
‘nergy lst (spate ding aloadng eel)

molecular asocia proces were associations eeu between aspal Binder molecules
hing sorgo at ambient tempera. Ofte callo ee hareng in th cat era,
Frec seccion an incense te dynamic shear modul € spl Binder The moi of
toeeu associations spl specific nd may be sigan even a afew boss of storage,

152

THEE Lu]

ny Aa ta Se Hg ad Tnt Os
sc cn cm

4. 320.

3240

san.

3212

32.0.

sam

3246

3210.

azır.

32.8,

aa

42

43,

sa.

y SUMMARY OF TEST METHOD

silo share to type old in which a shear sesso sea ri i applied oa
Fes suple onary mar sich tha the shear sess stain varies amplitud by
‘hou zer nad mar

role plat ones o testing promet in which the est ample sandiche|
Sateen tuo relatvel sig paral plates and subjected lo oslo shea

phone angle (he angle in aan between a sinusoidally applied tin ad out
ao rs ins contre tin testing mode, or hen Oe pid sues and he en
ran in a cooles esting modo.

orale hermameten- an clacton die at consista enperluredetecr (probe
Font termoccupe or es lement required tronc ru, abd endo system.

reference tlermometer—a NIST-tacsae dia or econ thermometer hats used
‘abort sand,

re handning see molecular association.
store shear modos (Gs comple her modus wu bythe cosine ofthe phase

me expressed in dees represents nase component of he complex modus tat
mens ofthe enr sored daring à ag ele

temperature correo irc intemperate between the temperate indicated bythe DSR.
‘athe est specimen s mesure bythe portable heat inserted been the tet

‘Der equilibrio isreched when temperature ofthe tet specimen mounted between the
‘estates constant wi ine

verification process of checking he cry fa devic or its component aginst an intemal
on snd Wis sally poned win te operating Bat

‘This standard conn the procede wd o measure the complex dia modales (G*) and phase
ndo (0) fap binder ui dar shear cometo and pall plato geet.

“The standard stable for uc when the ami hear mods varies between 100 Pa and
10 MPa Tis rung in nodal spel obtained between 6d EEC aan angular regen
‘oF 10 uds, dependen onthe pad, lepra, and ending (ang oe

‘ap binder

“est apcimens | um hi by 25min later 2 nn thik y 8 min amt ae formed
een pall met plates During ts, one oe pall pate oct th peu 10
Be er pecto encart deformation amplis (rain ont!) (or
torque altes (es con} The equed stesso san anplitade depend on he vals of
the complex shea modulus of asphalt binder being tte, The required amplitudes have been
‘sled ensure hat he mesurent ae within segon of ne behavior,

‘The ts secienie maine tthe tet pra to within 201°C by postive heating and
‘lingo he ppor and lower plate oy encon e upper und lower plate im a ac
‘tle environment or et chamber

Tea

THES ARTS

IN An cif te ga Tara cil
tr Dahman ene

5. 45,

Oscillatory loading froquencies sins standar an range fom 110 100 al wing a
‘soa waveform Specification eg performed a est frequency of 10 ral The
comple modus (G*) nd pas al (8) ar called automatically spa ofthe operan of
¡e cometer sng proprilary computer software soppie by Be equipment manglar

62.

sa

‘SIGNIFICANCE AND USE

“The ts temperature fr hs ets elated oe temperance experienced y the pavement i the
eograpca ae o which the apa bide is inne 1 be sed

“The complex her mudos is adeno of he ifs or tesis of asp hide 1
formation unde lad The comple seat modal nd ie phase angle define torito o
‘Shar deformation ofthe apa del einen viscoeatirepion

Te complex mods and the pase ano o wed to calculate performance elated eta in
accordance wi 320

“APPARATUS

Danae Shear Romer (DSR) Tes Sto Consising of parallel mea plates, at
vironmental ander, loading device, md a contol nd data acquiivo stem.

‘Tea Plate Sauce sel sina plates wth soot round surfaces, One 4.004
1902 sm in ameter and ne 25.0 9.5 avi dante (gre). The base plate in sme
‘comets Ta plate. À ase poco, a minimum of 150 mm high with he same rad
‘he pe plate regido aod pation makes easier tou the specie and y
Inpro eros

‘Note 4—To obtain comer dt he upper and ower plate shouldbe concentric wth ech other.
present herein stable rose Jr e wero cece concent except visa
obtenue whether o na the upper nd lower plates ro centred wi respect oca ier The
‘novesble plate should ote without ay observable horizontal or veria) ob. This operation
maybe checked vil or witha dal guage held in contact wth he edge of the moveable pate
‘wes beg rotted There ar wo vale that determine lo operating behavior fa
measuring stem ceci (orizoal wobble) and una (vesical wobble) Typialy, wobble
Combe detected ftir eater han 20.02 mm For new sat wobble 0120.01 mins pi
fe be gro to mae han 002 mat with use, recommended at he amet be
serviced bythe manatee,

==

Tara FASO

IMP A Ach rar Tre ae
‘Mignone dei

6. Figure 1 Mate Dimensions

642.

$121

6422

513

Eminem Chomber-—For cooling the test temperate, by hen a coins (tps or
ramps), unit constant pecin virent The mel for eng ad cooling the
pecen in be emirammental chaser dal ot alt pl inde proper. The tempera
inte char nay be conti by the eiculabon o Mid such as water, condoned as suas
gen, ory auiahle ange of ae eer clemente srroonding sample
‘When forsd tris ud, stale der mon be included prevent condensation o mote on
‘he plates nd fires and operating below eng temperature, he formation of. The
romane chamber nd te temperate coller ono! he temperate of

pecar including hema gradient within Be sample ah accuracy of 20 1°C. The carer
‘hal completely ende the a ad he atom plates mini hero gradiente

Note 2—A cel bth unit, parte om te DSR, that paste bah ad hough te
{ertchamber may be required fa id medi suse, he te ofthe bat met shoud ot
ls modified once thetompaatie seins have bern justo the desired value. Me inet
shouldbe peioeally inspected and cleaned or replaced ¡necesa 1 eme ostactons

TemperanoeContols—Capable of msnsving specimen temperature win 40 1° Fr est
tempera from 310 BC.

Internal Temperate Detector the DSR--A platinum resistance thermometer (RT) monte
‘hi the en raamental chamber an inter! part af re DSK and incase pros
‘xed plate, witha range of 3 lo 88°C, and wth reson a °C (se Nate 3). This
Uhesmoretr shal bo aed to cn bo tnpertue o th txt specimen between he plats and
‘hal provide à conne readout of peat dng ering ong, and sung,
oft specie, The PRT shal De alte sn neral uit ith respec eter oF
‘eee csi.

Note 9—PTR: meeting DIN Standard 43760 (Cas A) req ao recommended for hit
pose

Loading Devie—Capab of spying a sinusoidal on lo tthe specimen sta requenoy
OF 100-01 ra It requis ter han 10 ra are ad, the Gequeney shal bs acute to
ptet The loading device hal be capable providing ete stes-contolled e sc
“mirlo ond. Ifthe Load tin costed the ong device shall ply n oc torque

=

Tas FASO

gh an pin O
Mare beicon alce

7. ulin sean angular rotational rin accurate to wii 100 jad ofthe sin pied
Arte load i ses come, the loading device al pp cy toque acute 1 within

10 mm fe que specified, Tot tr compliance a 100 Nom of torque shal be es

than 2 dm. The manuf of th device shall ety dat een. stes, and stain
recto and measured with an secure fone psc oes in the ange ais

ota Control and Da Aci Syte—Capsbe of providing econ of temperate, quen
‘lection ange ond oque Devices weit messe ese quais hal at the curacy
‘urement spain Tae 1. In adden, e ste hall callate and ron the shear
‘Sous shear ram, complex shear madolas (9) and pha ange (8). The sytem shal measure
{nd record the rnge of 10 Pato 10 MPa 1 a acewacy of 1.0 percent res and Oe
pace ange be ange o 010 0 degrees, oan accuracy of 01 degree

‘Table 4—Conto and Data Acquisition System Requirements

Fra os
Penney me
Drona leapt

62 ‘Specimen Mol (Optona)—Te er dimensions ae ion bes mal or ing

ral inder et epecimens muy vary Bt he knee hal be rater than 5 mm he meldis
ge sample mal, e allowing dimenSons have been found suitable: For a 25mm est plate
‘wth Tom ap, a mal avg approximately 18 ma ameter and 20 mun deep. Foran mam
Test plte witha Zam gap, mol csi approximately 3 man mate nd 2 8 mm deep

sa. Species sed as 4 mun wide

64 pig Materi-Cean lt, paper ove coton swabs ar or sible sei seid
for wiping pue

65. Chen Soiree, citas bse solvents, nee pits lune simio solve

‘required for leasing te par. Acstone or moving the solvent eid onthe secas of
pes is also peces

66, Reference Thermometer Bier MIST acc igs emotes) or NIST-
traceable cleeronie cine devel) This temperature standard bal be sed o standardize
the portable fhemomert (Sesion 93)

664 Liquid Glns Themometr--NIST cebo eros) mel the rarement o
ASTM vid able range and mins 0.1". Te remote sale apa
immersion remote) win a ic pin and standardized in acnrdance With ASTM E63

6611. Optical Viewing Device Optimal Bor we wit iqidsi- pass ermamees tetas
senda and nie parle when eating the iquidinlss een hermomeiet,

682. eo homonetor—tecorporag a rss detector (Note 3) with an accua of 4005°C
nd soin of 01°C. The leon hemomater sal be stunde est once rye
ing a NIST-tneabe reference standard in accordance with ASIMET.

or. Portable Mhemnomerr—A standar ed poble thermometer consisting a ses detecto,
sein electron cry, nd iil renden. The Dci ofthe dtr hal ben geste

ise Fasz RO

MD ion Ain feign anni i,
Mingus ep nein tae

8. ‘han 2 0 ram such hat ican bo insert been the ts plates. The reference thermometer (ce
Seton 6.6) may bo sd fr this purpose ts detector Ms whi he dummy specimen as
seguire by Secon 94101942,

TA.

HAZARDS —

Standard aora cation should be used in han

82

sa.
84

es.

as.

az.

PREPARATION OF APPARATUS

reat th ppaau testing in accordance with the manufacturers ecommendatons.
Spel reqtement wil vary for tent DSR models and manucure

Inept safe ofthe et plats and sa any plas with aged ot wounded edges deep
sait Clean any asi binder esd om the pts with an organi slentsuch as mineral
Si mineral pits, rutas oven ot luene Remove ay ening solvent eda by
‘ving the tice ol te pac vio con vb or ot ot dampened with exon.
vcs, usa dy etn suab os loth o cnn atmo mais condenses om he aes,

‘Mount tho lesen inspected test plats on he et tures and tn ely.

‘Sele the esting temperature acorns othe grade ofthe asphalt bis second o
slid testing schedule (ee Note) Allow the DSR to each a bie in pratue win
SO ME ofthe tow engere,

Noto 4-M 320 and 29 provide pides he slain oft temperatures.

With es plates atthe test temperatur othe mida ho expected tin rango bi te
zero ap level (1) by manual sping he movable plas, and whl he moveable pies
ing, och gpa he removable pt che he ed plat (he zro pp i ached
‘then he plate stops sims complet), o (2) for cometes wth normal fre ansdacers, by
losing the gp and observing de normal fre and fr easing contact between he plate,
etn he 2 pt pptonimatchy pt mal force

Note ET ms, detectors, ad fixture ia the DSR change dimension wih temperature
‘sing eo ay to shame wth change in empero Adonis in the ap anak
san when messuement ar made over a med ange of enpertres. The gap ho be
‘tat th temperatur own tr arf be conduce over amp ftp, pr
Should be stat th mil of he expected ang fe tempera For mas sme 0
np adjust is ended long the st tmperaturei ain 12°C ofthe temperatur at
‘vic te gap is set testament has teal gap compensan, he ap may best he
ft et temperate instead of the idle of he ange fe engere

‘Once the xr gps estab a per Seton 8.5, moe the plates apart o aprista the est.
op and peat the plates Pre th plats promos neon between Ihe sept dr
and he plates, expecially ath itermeite gang temperatures.

To pucca 28am ples, bing tho et plates tothe fest temperature othe ot est emgerature
iftstingisto be conducted at mor tha one temperate. To peh fmm plates bing te
ses 1 between 34 and 46°C Move th plate apart and establish a ap seta. mm (fr
Sem diameter te specimens) 07210 mn dr rm ameter est pines).

Hote 6-1 order lan equation betwee th asa inde and He et plates, he
plates must be prehesedPreaing sprl rica when he line mol used lo
Prepare the asphalt binder for waster othe et plates ad whe the testing conducted wh he

THET AASHTO

‘© aye Ami A tS ip pcs tt
areas buses ye vcd piel

9. mm plats When he diet placement method wed a lo athe et plates re immediately
Bou conte wi de spa ide, he eat eared wi the al under proves
en The prchaing temperature nee fr pops adhesion wi depndon he grade and
tre fe asphalt binder and tits tope (Ems 25a pla) For soe of the
its binder gras, especialy ose wih hp levels of modi, beating the aes to 46°C
‘tay wt be slice eat proper aceon ofthe spa Binde fo the tet plates expecially if
fe ice molds sed and he ening conducted it em plates Por igh made.
phat binders ony, higher pres temperatures maybe wed

3. VERIFICATION AND CALIBRATION

on ‘Verify ie DSR ands component atleast every 6 months and wien he DS or plas ar only
ins. when he DSR is med o aneleation, of when de acer of ie DSK or any of its
‘orp peu Four teme equi versione tt plate diameter, DSR toque
anse portable thermometer, and DSK ts specimen temperature Very he DSR
Repertoire andre

92, Verification e) Pote Promete -Mexows he ameter fhe ast 0.01 mm Nitin log of
‘he mensored meters spat ofthe laboratory quality cool program so hat the messarements
‘lel denied wa the spi lates Enter the seta measured decis ino the DSR.
“star fou in lle If the fp and boom pits dilo dames, ante beamer of
the we means dames
Note 7—An err of 0.05 nun the date of the plate vests in 0: pecan erin the
comple dla fo th 25-au late For he un lt, cos in diameter of 40.0, #002, and
2006 mm giv respective error im complex modus 03, 1.9, and 25 port (er Figure)

sens Date re Sn pato

tatoo 25 en pato
op an Em

anne Gap eo, 25 pato

h on &

Ed, 4

== 0d

8 A

pos “À

am 0
Figura 2 of rin Cor Mt Dont
a vas MSO

249 An Acta fae gan D
need Pain evoca

10. os.

931

ea

aaa,

942.

Verification of Portable Thermometer Ves the portable themmeter (sed o measur the
tempera ben th ts pate) ung the Laboratory reference thease. À portable
emo al be consideras combination ol he meter (deu dec) and emisor
(enperaure probe) as single u, ad ns be verified a such ne reference thermometer
(con 6.6) a wd a portable hemomr to mesure he tempora baten st
Pie, i shall ce erre of Sesion 6.7.

Recommended Verifcaton Procedure Bring he reference demain its contact
‘wt detector fom the portable hormone ad place tenn a hermosa called.
and tir wer a Not), Enr at deinizl water i und to prevent dec
‘onducion fom oscuro between he clcrodes of ter tempera serve element 1
cine voter is ot valable, encase he reference momo nd detector a he potable
mama in «waterproof pla bas prior to placement in e bl Oba estrena
intra o pponimately °C over the rene tes temperatures allowing te ba o reach
ma pln a ech temperate Ie rang fe portable hormone a the
veleros thermometer ie by 01°C or mae rer he diftrenee a each temperate ana.
ts soci, nd maintain th corne og as par oe aba qual
conta program.

Note 8A recommended procedure forthe igh tempertre unge sto us a sive wt bath
thats contlld win 801 such ath viscosity bath used for ASTM D2I7OID2ITON or
DEITUDZITIN Fora Joe temportre ad, co batho ostra bh maybe
‘ed Bing the rob rc he pole terme it contac wth the rettence thermometer,
‘Sd bold thease mate onc A robe band works wel für his purpose Immerse the
‘sembly in th waterbath and big the ter baht thermal qui Record the
peau on ach dee when thermal qin reached

Note 8 the rein fiom the tun devices fer by 05°C oF we e clan or peto
‘ofthe portable hermamter maybe suspect and may need be eit oF placed A
outing change nthe temperature comen io ma also make the potable
Hamon suet

Test Specimen Tenperaae Correction Thema gradients win the somes an use
een: been the temperature ofthe test specinen nd the tempat ated bythe
DSK mate (alo used o cnt the tempest ofthe DSR). The DSR terwomee shall
echec at an interval no greater an sx months. Wien thes differences ar 0.10 or peste
demie a temperature correction y ua ema detcor mont in line uber wafer
(Section 941 or by placing asphalt binder (uy sample) between he plates and inserting the
‘decor of i portable hemmen th amt der (Scion 94)

Method Using Scone Rubber Wofer—For se ete rage of test temperature, ples he vuter
‘ere the Lam tt pls, and co the gp o bring the vr mt contact wth he upper
dower pes tht he scone er makes complete cole wi (he suce oo pp
Slower pats IC needed, apy in or of pevoleun ease raie compound (ce
Note 10) 0 completely il any void space btvena he ice abe md he plte Complete
«contacts medal o ete proper et aster actos ie plate and silicon abs wafer
Determine any needed tempora crecio a por Scion 9,43.

Note 10—Aui-si2e compound available y at mane at hardware and uo supply stress
‘nach es apt o contaminate he ircltin water han peto pene

Note 11— The thickness ofthe silicone war ould be measured wih clipes identi de
ctl thickness. The macs can be sed oe the gap for tempera

Method Wing ey Tes Specimen The day et specimen hal bo orme or asphalt
tinder or ie ply that an be realy Yard been de plate. Mount the dummy test
pacien et he est le, ad inet the detector (rohe) ofthe portable themometer int
tho dany ts seien. Close th gap tothe tet pp (U man fr 25am ples md 2mm or
‘Sn plate) espn de detecto catered verily un rallye dam ts specie,

TS

Tas SATO

O0 emia Auch tg a Tope Oe
gcc Den cel pc lo

11. Heath pts need tallow the day tet specimen to complet il he ap bein the
test plates st necessary tow he danny test specimen but avoid ceso mates
round th edges ofthe plates. Determine any needed temperate coccion a por Secon 9.43,
Note 42—Slly paty can leave a esd of scone one sacs of th ple, and fa this
reason, is se a dummy specimen sot recommended.

943, Determination of Temperanre Corecton—Obtsinsvulancoastpeatro measurement via
the DSR thermore and de parle hormone 36°C nennt 1 covet he ang fest
"temperatures At each temperate inctement, afer thermal qui has ben reach, etd
tempe indicate by te pole heroes ad the DSR hormometet othe nearest.
01€ Fepetsuo eq tech when the temperature indicated by both he DSR
thermometer andthe portable henmometer de no vary by more han 0.1°C ove a Sin period
Obi addon mextrerent to melde de entre temperature range hat wl be u Ee
castigo dane sear modal

944 Phot Corro Veen Specimen Tenperotre—Using ie data obtained in Seton 94, prepare a
plot ofthe diferen herent o temperate measurement vers he tempera messed
‘sth e potable denmoneer (Figur 3) Ths diras he tere covrection at mu
‘be epplid othe DSR temprraao coll o obtain he dard ner nthe et specie
‘between de ts plates Rept the tempera correo athe especie ts temperature fom
the plot and report the te tempest ben the pts as theft temperatur. Aras.
te incvumen software muy bo wien o incorpore hess tempera corrections,

Note 13--Te diferenes between ih to tmpertromossuements may or be constant for à
ve rheometer but may vary wath differences between De st temperature ad the ambient
bern temperature a we arith ctonton In abe temperature The ieenee
Ben he to tempertre measurement saudi par y heal gradins in et
spécimen and tres

Pomar
Dame.

Probe Tenpenre,

Figure 3--Deteminsion of Temperature Correction

98, Vrifcaton ofDSR--Neity ho seaacy of he torque aduce and angular placement
trance
Note 14—A ney insalled or ecantond intent shou be verified on y wecky basis
ing he procedures in Section 9 ni acspable vecinas bee donated
‘Maing de aa he fr o conte hart wee eva measurements are pled
‘ert calendar dais ecommendel (ee AN X2),

a Taro FASO

OR At eo Sg Ton tie
ra D ve

12. 964.

asa,

9512.

952

es.

Verificaon o Torque Trace Very the arto of the orquetnaducr à minim of
nice even six monts using a eference id a manufacturer supplied Hxtres when the
braten ofthe que ansduce suspect or when de dam visos, as esc fr ie
{eference Mid dites that he torus tranaducr sot in calito,

Verification of Torque Trondacer ih Reference Huld Too comple visos measured wih
‘he DSR shall e vit 3 percent of he capilla ic a reported y the manfachrer o e
reference Mi terse, the calibration oh torque made hal be considered suspect,
Cacao complex visor a the complex md, dive byte malo quon i
dl Recommended practice for ing reference id is piven in Append 33,

Percent are (er) o
=

here

m end cpu viscosa reported y te suple of he reference Mid: and

nb be ensure visas a calcule from the complex modos, 6, vids he
angola fuen in

Note 15—A sale reference id is aval from Cannan Instrument Company a Viscosity

Standard Number N270000SP. The viscsiy ofthe standard is reported in rs Conver the

scsi measurement to mi before cala the pean vance.

Verification of Torque rumshcr cts he clan of he togos unser
‘sing the marafictreneupliedfatres in acces with he incas supped by the
manufscrr Sale manufacturer supplied tre ar ot Wl available Hui tres
‘ono valle is equi sal be waived.

Veneno of Angular Displacement Transducer entacure pei fra te
salable, veri calibration every six ns when he cali of the DSR is suspect IF
Stable tues ae not aval, ths require shal be Waived.

tthe DSR cavas be success verifie acon o Section 9, it shall not be wed for esting
in acces wth ls standard Ui it as bee testy cabal by the manufacturer or
‘her used service pesan

10.
104.
1044.

1012

PREPARING SAMPLES AND TEST SPECIMENS
reparo Test Samples nage binder i tbo ested, bain fr samples acond 0 R 6,

Desing Prior to este Fe apa binder lso being ted according oT 314 (DT) and
tas ben conditioned according o T 240 (RTFO) and 28 (PAV), dgas the apa binde as
send in 28 preto test, Oars, deasing ofthe spa binder samples ot
read

Anges he asphalt Binder rom which he st specimen is bt by heating ul sf
‘id to pour the ee specimens. Armesing prior to tin removes reversible oleae
associations (ti hardening) hat occur ding owe storage a amet temperate. Avoid
len the bdr sampls above a temperature o 163°C however, wt some model ot
‘esa aged apn des, pouring temperature above 163°C may be grd Loy cover
Ue sample, nd sti occasionally dune hezing proceso ensure homogeneity and to
remove air bbls Minimize the heating temperate and ie to vod handen he pl,
Note 46—For neat spl inde minimum poring temperturs as produce a consistency
silent tat of SAE 1OW3O to ely pos bu at vey id) atom
temperate are recomended

=

Tem RER

29 cn Aci Su gr au Tata Oi
nd pr are

13. 1043.

103.

1034.

1032.

1033

10334

Note 17—ForPAV age suple, apando may be placed in avaımm oven set at
navi of 175° for 40 in. Due 16 he por het ante in the vacuna oven, he salt
Binder il not be vere

(Cold tesa fo storage containers must bo mel prior o usage Sucre developed ing,
orar can est In overeating the mods Ly as much as SO perce

Preparing Tes Speciment-~Zeo topa a peste ia Seton $. Cell cle nd ey he
faces oft plate so that he seston mil dere o bot plats airy and onal.
Heat the humberto 341 46°C whe sing the Sn specimens Hea the chamber ote est
Temperatur o the beguming of he age (Note 6) when wing 2-nm specimens. This
men sto pedal the upper and lower pate to aloe specimen acia to bot pee
repare ts specimen wing un of te method speeds Sesbon 103.1, 1052, of 1033.

antral binder oon ofthe et plates hough pouring (Section 103.1), diet Gale
(Section 1032 erby aseo icone old (Seton 1933 Use suit amount of apt
Tinto tat ina ered

Note 18--Dirs afer and pouring are he prefered methods eco the et rests es
‘ely tobe oe by tere hardenins than ss silicon mold method Dit tante and
nel pou esl in Hg sb bar temperate whet he plates a asphalt ind ate
‘rowenta coi, hey improving bso, Fo his vasn, s ls important orig the
pnt binder ná plates no coat prompily ar pouring or it wate,

Pouring Only when wing shames hat te deci fr removal o the plates thot
Mfc th so Stn, remove the marble plato and, we olin he sap cotinct
prima 1S um above te est lat sure, pow the asp binder the center of the
‘pe test le etc ni covers the ene plat excep fran primate 2m wide
pie perimeer (Note 19) Wait ony lng enough or he seien o srt prevent
‘vere and then moun tees platen the seo or eng.

Note 19-~An sje dropper or singe may be sed to taster thot asphalt binder ode plate

Direct Transfer—Teaastr te ht asphalt binder one ofthe ates using à pls oF mea rod,
“yd, ola to: metal ae trans he ht asphalt binder o oe hs plate,
proceed to Seco 104 rom he specimen and oem th bul

Note 20—A small, roo anes sel and ofthe type used o weigh poser onan
anal alnee hasbeen fund able fr ans fe aca at binder, When ung a
‘od fom toast pecan wih ist moon sug a asso ui size, The ost
‘oto sc fo ep sms on he md in onl Ato Sm dante od table The
‘sod technique especially wet forthe wn plate

Sie Motor the at spat binder int a lite uber mod that wil form pellet,
Fes dimension as tue in Sesion 62. Alle sine rer molto cool oom
repeat. The mold hal be covered we cooing to hante contamination The specimen
may Bo mount o ether the upper or tone plate To mount the specimen tthe lowe pla
remove th specimen from the mol nd tr te ple onthe lve plate fe DSR. To mount
‘recpeimen othe per lt, eae th specimen on upper plate wl iti sili the
Scan er mol Gn pres he specie tote upper plat and then erty remove te
came ruber mold lei he specimen aero be opor late. Completo al texting win
‘Tho pou the specimen into te icon uber al

“The filed mod shouldbe cold tea temperature by placing th mol onal boron
teach fac out chiling Cooling o temperatures below rom para sellin
{know teal ity tht may fe be messe ve f dar an phase ange.
sali ma also ret the formation of wine où the face ofthe pin hat wi
duero wth adhesion of th pete othe pits

THE AASHTO

2200 Aman sna Lio le ai ct
ne e eh

14. 104.

108.

Note 21- Salve shoud not be wed cian he cone uber molde Wipe the mols with
lean dot to emos any aspal binder residue Wi use he ols wl become stained fom,
‘he aphal binder, making i eu to remove ie binder fm e ald sticking Becomes a
problem, sed dhe mal

‘Note 22- Same binder gras enna be removed fom the scone mol without cooling.
“Marin such PG 32.34, PG 4634, and sore PG 8.3 prados d a nd hase to
eng removed fom the mold at bit tmpertue. Cth binder specimen cannot De removed
‘om te ind without ang he re Waster or pouring metho may be used ue the filled
tld may be llei a eezt error (os macimum 10 noc dead
the specimen

‘rman Tot Specie ematinaly ar ih spain has been place on one a thes
patra deed above move hae plates together ul he ap Len th plates equal the
Testing gap pls te gap cor required o conte ule, Seo Seto 1. or pr clone
regul rat the bugs) Tim excess bind by movi a bete ing ol around ie
‘ges ofthe plats so tha he ast inder Is Auch wh he outer diameter o the pss.

Note 23—The rimming wol should beat a temperature th i sii ot allow
‘rinsing but not seele host ur the ede of he spe. Te imag wo ald
leo ole excesiva col 31 Sta or damage he ee othe ts spchncn

Noto 28 -The ap should be set be starting ts temperature (Section 111.1) o a he midi
fo expected rage of test empertres (Section 1112, Se Noe 3 or guides an sting he
‘ap ica, lal ts reels maybe obtained wi single sample us emperarse
in 2°C of dhe temperate a wih the pp iss

Creating aient afte imaing complete, decreas the yap bythe mn.
Read form aslgh bulge a he outside Face a the test spcimen The gap ree 1 rat à
bile ie hcometr specie and depends om fair uch so dei of he contra he
diferenesbeeween Be min empero a test tempestre Recommended sie valve
Far rang he ep are 0.08 mn or 28 mu plate and 0.10 mu as the mn plate. A
‘recommended paró o voi gp lote soquied o produc an appropiate bulges
ven Appeaines X8, 29, and X10.

Note 25 he complex mulated with the asamp at th specimen diameter is
‘ual the plate ameter If th shat inde forms conca suce tits ote ces, this
“sion wil tbe valid and De models lb underestimated. be eleulted mods
{isd on the radius ofthe plate ie oe Fourth power. A slight bulge qua to april;
‘oe unter ofthe gap isremmende. A pce fr deleting the closure ego fo
tm acetal pp le vena AppedtesX8, XD, nd X10.

EN

aa.

mas

#42

Ta

PROCEDURE

Bring e specimen tothe test tempera 10.1€, See Note
Note 26~The pp shoud ost at the starting test temperature (Seco 1.11) or at he mide
ofthe expected range est empertres (Secon 1.12) See Noe o guidance on sting the
m. cal, cll test erie my be china va simio sample an Sano 2
ae, ing temperaore sin 12°C of the temperate at wich the ap ie e

‘Whe sing a binder for compliance wi M320, select est tmp from the appropriate
OTE

‘When condcting a temperature sep, trata midge ts temperature nd increase 0
decrease he es temperature 1 cover th desired range st temperatures (See Secos Sand 7
ink)

THES AASHTO

SD Aa Au ey Topas e
Nr Pp lazo lo

15. 12 Seth temperature conte wo the deste e tempera, inclui ny oft sented by
‘Section 944. Alloy the temperatur indicated byt RTD o ome o e desired tempera
“The ssl be tated ony afer he temperature has remained a the desired tempera 410
For alle 10 nin,
Note 27—1is impossible o specif a single elas time at is vali for DSR prado
by diferen manfastuers The design (ud bal or u oven ofthe environmental conto
‘sytem nd fearing panne il itt ho ins ruido nh he st pee
The method for determining the covet heal equim tines desebalin Appendix X12.

ma Sal Cone! Mode—When operating in sri-comelld mods eine the tin vos
cording othe val of he complex modas Cool he sain vin 20 percent fo gs
Value at by Rquion 2.

o

1 prete A a
or 2
whee
7 = shearsainia percent and
69 = camplecmuddacin kPa
HA. honte specimens fo complace wäh 320, set an apporte ra als rom

“Table 2 Saar is available wih the danse ses cent a al conto te st
sonal witout contol by the opera

Table 2-—Taret Sein Values
Sn prt
Tage
Mai Vue __ Rome
ES
m ¡Ses Corot Mode When operating in a steel made, determine he tes eel

dr mea ole comp na Con erwin) cava ms
Sr ed Een

ETES o
ve

2 des stink ed

Ge = copia

sas Min sing specimens for compliance wth M32, sels an appropriate ses lve om
‘Table 3 Ste table ath the dame scr cometes a wel como ie rer lve
Automat yao conta by the operator

= THE AASHTO

29 ie A Aci! Se igh ad pon aa
nan Den van pret

16. Table 3—Tesge Suess Levels

Sr ihe
Tia

When th temperature as culiratd condition the specimen by applying the required tin or
recommended 19 eles or a required song of tn 16 cles a aqua 10 ad cee
Note 26 Oban a tet messremen by recording atar a ation recomendo] 10 ler
‘oF rage of o 16 cytes Redes he dts bled fr he second set faces prduce a
‘se forthe complex modal und phase angle Typical Fas Fourier Transom (FFT) used
to rece the dea Maple mensreents maybe obra o ve at he anes rap
‘Prepared, Dishording betwee de pts and he ie fisco ae sample ean sl in,
caro in he mula i ees measurement Some spl binders may dub eed
rodas with conned aplication of sa esse (mile wessen) The du
casio system automates quires a reducer e dt wen propery activated. When
dung tt mare thas ne ua, sist whe lowe fequeny amd incre lo
eight equeny.

Note 28—the standard frequency of 0 rads ic used when eng binder or complies
ih M320,

‘The data scqisiton system ec i Seton 6.1.4 stomatal calculos GY and tom os
daa acid when prope scored.

Tnt he sing immediatly her preparing and rimming he specimen ‘the texting a
subsequent tmpeatrs should be done u ily as posto ne te sit molecule
sion tric baring) ua can eu micros ino he specimens al in he
‘eomeer fora polngod perio of fine. When testing a ile temperatures al sing sould
complete win la

7.

INTERPRETATION OF RESULTS

‘The dynamic modus and phase le depend on he magnitude ofthe sear stain: the modas
“aná paso ange Fr ol uam nd mode spl binder decrease it incrssn seat
ina showin Figure À plot su as it shove ie ign 4 can be gone y ada
nern. be our sin anple, day producing sain sweep Wis ot essay
ento such weeps during nomalspeiieaton sing: however, such plot ae well für
‘ening te limits of th near eo.

152

THES RSTO

62090 Amaia Ace aa oy Trion il
ne Dc a la mie

17. Complex Sheer Modulus, KPa

3 Complex Shesr

Modul, 7, kPa

SD Ra: G at 12%
Shan at 2%

812% Sais" at 12% Sra

Stain, %

Figure 4—Esample of Sin Sweep

122. Linea serio may be defined a mal stain whee the modul i lative independent of
eher sin Ths region will var ith ie magne ofthe complex mods. The liner eon
seine ase ranges stain whet he comple modal 105 percent o more of he oros
in vale

123, “The shea ses varies nearly rom ero at the enter of the plats toa maou at
remis of Do plu paints, The thea ris calculé Gam fe spied or mestre
torque men raped sain nd the may ofthe tet pecimen.

5. REPORT

ma. A sample por format given in Appendix X13. Provide a complete inicio and
dep athe maria ested incloding name, ga, nd sous

132, Desc th insrunent el forthe testing mode number.

138 “he rai and as eves specified in Tale 2 and 3 have ben selected ensure common
(elrence po ht hs been shown be win he inca region for neat and modi asphalt
Bde Some sts may wot near hin his rgion. Won Bis san is observed
‘pot the made tthe recommended ees ora ovale bt lo report hat eet
«indios were ouside the nee eon

124, Foreach ts, repone following:

1944. eat plat irte, pret. mn ad tes op caen

1942 ‘est temperate, set 01°C;

1843. Tesfiequeno nearest 01 rads

1244, Stain ampli, nearest 01 percent, torque, ae oN,

ma - Tae FASO

‘© mae Ac si St ma on Ton a
Siac Dyce wasnt

18. 1248

Complex nada (6) fee 10 measurement, Lao es significant Foes

1846. Phaceamge (8) forthe second 10 les, nearest 0. dores and

war. Grin, newest 001 Pa, or ns, nearest whole number,

1 PRECISION AND BIAS

u. Preis or Judi the acceptably oF dmami she resul chine by his method
a gin in Table

sas Sing Oper Precision (Recta rein Column 2 fable 4 ae he
cols of vasa at have bon ound obs pre fr he nit le eribed
in Colum Tu real obtained in de sme labora, bythe same oporto wing the same
equipment nthe sore praca poro of ns. sou tbe consid supe les te
“erence inthe wo resulta, expresse sa percent of her mean, exceeds te vals ven it
‘Tabled, Cola 3

1442 Mallaboratory Precision epoducibily)—The iares in Con 2 of Table dre the

clients of vain that have boc found tobe apprit fr e condition fet desee
in Couma 1 To tess submited by tw die operators esting the sane at in
(een css sal ot be considered ssp! unless the fence Ihe two reels
‘spreseasapecctof thoi mean, exceeds he values given in Tale Cola 3

Table 4-Prsiion Eimaen

Core Van Asap Hagel Two Tas
ir

Condi ar
Sige Op rr
e de re) 1 1
RO en a as 7
bear Pt
inne ans a) se tea
RO Gus) 5 ss

Note 29- Te precision estimate piven in Table 4 are base one analysis o et real rom
ton prs of AASHTO vou rfiieney samples. The dto analyzed consis of ress rom
22010302 lbortri fr euch fhe en ois of samples. The analy nce sven binder
fer PG SE28, BG 8228 (oie), PO 6-2, PO 7022, PG 1028 (need), PO 76-22
(odie), and PG 82-22 (oie), Arca oil binder reads for Gia range rom
1196 La te 1871 KPa. Average KTFO resida sul for "in raged om 2884 Pa 10
5385 kPa, Average PAV resid esl for Ge sn average fom 90 KPa o 4744 kPa The
shod wed fr ik analyse are sn he nl rept or NCHRP Project No 9-26, Pas 3

Note 30--Asan example, to tee condcted onthe same PAV resido yield rena of 1200 &Pa
nd 1300 APA respectively The average hess I measurements is 1280 kPa The accept
‘ange of sus then 112 perce of 1250 kPa or HD KPa. As de iflreneebeiwen 1200 KPa
‘Su 1300 Peis es than 140 KPa he esl a win th acceptable ange

12 Blat-No information canbe rescated on he bins fe procedure becnse o atril ving
an acepedetteee val sala
= THAT SHO.

219 y Am cin tel Toi Oe
on pasao lcd

19. i

KEYWORDS

154. Dynamic der dance, DSR; complex modas; apa ner
APPENDIXES
(ontandstory Information)
x. TESTING FOR LINEARITY
xa, Scope
TRE “This procedure is ed determino wheter an age aa binder exit nar ornotincar

Ma

xu.

PE

xs,

tio ae upper grading temperature 6 52.38, 6, 7, 76, oF 22°C. The determinations
sed on the change in complex es modus 10 al hon th stain incensed om 2 o
Ia percent

Proce:
Ves he DSR and componeats in accordance vil Seton 9 o his standard
‘Prepare the DSR in accordance with Sein 10 of his ndo

Prepare est pecme or eng wit 25-0 plates as pet Seton 1 a dis standard Slot he
tas temperature a the upper radio empero fo the andra question

Determine the complex shear modulus ar2 and 12 percent sin oli the ts procedure
duc in Sccbon 12 exept a noted below. Alay tat withthe lowes suai and proceed 10
‘ened huge rm.

Sirin Could cometer he software provided wih the DSR wl amical conduct
{ests at mull tie, program te DSR to obtain he complex het mode aati 012.4,
46,8 10, and 12 percent thie automa etre ine vale, et by mana seg sins
GEL A GA, 10 and 12 pete ta

For stes conto comete, compute string sr based on due complex seat mods,
(9%, nd shear tes, sa determined at the upper grading iempentur ding trading e
Fan. ts tape the complet da, 6°, wl be pester tan or qua 10 kPa and
he heu tes «wl be betwee 0.090 nd 0150 Pa (ce Table 2) Clete he sang rss
a 00 kPa Intense he rss ive incremento 1600 KPa

Note X Sample cole Assume a PG 4.22 asphalt binder ih = 1 29 Pa at 64°C
andx=0.135KPa The staring ten il be | SKPVE = 0.225 Pa Testo 0.25, 0450, 0.675,
SD 113, and 135 kPa tring wich 025 a

Pt of Compl Modulus Versus Sirain—Prepar pot o comple shea modus versus.
cen stain as shown in Figur . Pom de plo, determine the complex shear modulos at 2 and
TP patents.

Caleta:

ss

Tess ESTO

an Am Ain ley a Tono tt
cd pc ovillo

20. Cause he modules rai as th complex shear modus at 12 psc strain vided bythe
comple shear mods a percent sin,

Report
ape fotis:

Comes shear modus (6°) 0e sigan fur
Sie nan. cn;

Freeney. nee. hs nd

“The ato cette by divin ho mod at 12 percent str by mod a 2 percent

ava interpretation:

“The measurement vas ef the onina range ofthe atrial the dls rai as
‘oleate in Seton XL 6.0900 aná ino if 20900. Ihe mesuremen was pron in
be nalinear age ofthe mater he ets obtained under this sndar lb considered
invalid for grin inde accords to M 320.

xo

x22.
x221

CONTROL CHART
Contr Chart

{Control chart are commonly use by various industries including the highway constuction

Indy to cont equal ol products Control chart provide a mean fo canins,

rinsing and ner tea du As such, col chars re a exellent meas for

‘eran, mailing, ad iterpeing DSK vencio est dt Formal procedures based on

Sinai ries ar sed 10 develop control chavs andthe den processes a sept ot

Statistical quai ent

‘quality contol hais simply a grapical representation 0 test data veras ime. By pling

Fatoatory measured values forthe reference din contol ct fra i xy to es when:

‘© The menarement are wel colle ná both th device und th operator ae performing,
propery

The mesarmens ae betoming ote ware wi ime, pony indicating a problem with
hotest equipment or the operat

1 The laboratory messrement forthe Mid are, onthe average above or ble pet
(ference a vale,

Many excellent software programs ao alle a enering and meinaning cono! char.
Some computer-based stata nays packages comun procedres at can be word to generate
‘ol cuts Sprendehet such as Mira el cn al he und encase

Sort of cas, control es cn ho generated manual (See Tabo 3. ar an sample)

Cavin Seti Dat

‘Data used to generate cao charts shouldbe obtained with ee. Te ida does
important bt need ot sam unecesarily completed. An campo wil show why random
“samples medad a aborntay ala mesures the ference id he at of thei oe
‘ove These weauwemen!s could o based by startup enor uch as a ack fenetre
A hn the evict ured on The rand sang cars he menorca is

FF

FE STO

DOY De Aaa uc! Stn ad ati ci
ee Pac al

21. representative ofthe process or the msl being, teed. ai another voy, random seme hs
nel chance of being dawn a any oe ample, A measurement or une ala taken a
the stato endo he da, or jst bere oe break, des not ave hs chance,

x EXAMPLE

xa “The power ofthe contol huile in Table X3.1 sng ie veifcaon dt obtained for
‘he DSR Other DSR veran data stable fora quality cant chat pret cde
mesurent or dteminng tn temperature cocon, abr he con hemor,
{od mito data rom item generated pal dereference samples Far dis example,
"repone viscosity fo the efrence Mi is 27 Pa ne, he seat value for ie
2.71 kPa This valo for Gis led "0 fom Reference Fi in Figure 3.1. The
Labor shoul btn this value on verge fre o laboratory Bas

Table X3.1—Sanple Tes Dat
Weak Meson oa

xa, wih Vatu Clee from Reference Fi

x024 “The 22 week verge ab born measurements beled as "2Veek Laborato
Average" in Fgu XSL Over the 22 eke lr wich messwemene were made he are vas
273 La This vals compare aotbly wih the clad reference valo, 271 Ka din
om he average by only 07 percent. Thee apps belt laboratory bist nhs dts

xaa. Conperion of CV of Laboratory Mensrencit wt Rund Robin CV,

xsi. ‘roma previous rund robin study, the within aberatoy standard deviation (to) forthe Maid was
reported 0045 (CV 1,67 pesen), Th 2-wc standard deiaon forthe mensaed values oF

sab => a AASHTO

2D Am Act ad Tatin ia
ingiere Im mal

22. xa.

at

xs.
x38.

6" i0081 CV = ts6pacen),sccompasedt 0015 (CV -1.67 percent reported fom he und
obi, However, it shoud be pied ou that ih 22wesk CV, 1.86 pre, ln indes y=
“ay vrai, à component ol variability rating in de roman swale Based on is
infor th sarl of te aora mensuement are aceeplable

arab of Measared Vos:

Fe. the value of clued fom the een li i chown sa oi ie, Alo
‘how ate o ded ines tht teresa de G clued fom he reference Mid 42d where
Als the value om he oud ro The alae reference vale fo he fide 2.7 KP, and
The standard devions 045, Ts, deviton 012 ds ves vales of

2714 2) (0088) =280 kPa 262 kPa as

the hbortory procedures re under conta, the equipments prope carte, and ee
laboratory rs, 95 percent of the measurements shold al wth he ite 2 62 KPa and
380 kPa Laboratory measurement ouside is range ae suspect onde cause ofthe oie
Should be investigated The tier may be the rel fer testing vrbili or borat bis.
The essuemant rom Weck 10 in Figure XS. ll ade the 2 ints ande ee or
cance sch testing pocedses and ication soul be eine.

fa messemet deviates fom the gl in is cae hm he reference id, by mor dan
3 ls, comocive ation sould bo noted The 43 dis ite 9.7 psc ofthe wear
‘alc i the aboratny proces ae under conto nthe equipments pope abro

‘Tro in Menue Yat:

‘The contol cart can aso be wed to deny umd tenia deja For example, fom
‘Weeks Ito 5, ey dcease in the mesure ale is alerte. This sue fo once and
‘heretson fr he wend sould be investigated More sophie ule or al in We
“nl hat em be found econo

a

THER ASHTO

aM Aca Aie ae gh un Tang h
an Ison en pr

23. 2

21%

2m

Complex Modus Pa

‘Wok of Maasuramant

© monn va
manna: Gomme A
= = kate Age

Figure X3.1-Conto Chat

x. USE OF REFERENCE FLUID
xa1 Source of Reference Fit
xa2 An organ polymer produced by Canon Inrument Company as Viscosity Stent

IN2700000SP ac ben found sl seen ld for vet the alía ofthe DSR.
“Tho sony fie id, us determined rom NIST-aceale capilla) sos measures i
syproximatly 20 a's at 64°C However, th viscosity oe Mid ares fom one et othe
‘nowt. The lose viscosity e pre he be ofthe bt

x. “CAUTIONS IN USING REFEREI

x61 Some items aun when using the reference id aro:

‘The Mid camo use ves he aceuray ofthe pase ale messuement

‘The id mat ot be esd as eng ean degrade the id, casing change in ite
visas.

(2 The ad shou be wed or verification oy al he DS temperature wessurements are
ven

Im Th fluid ana be used to carafe torque trance The manufacturer rober
‘lied ace ponamcl sig clean device dosed ecc fo the toner
‘Should perform the elation. Thess crio device ae typically no available in
peri born.

THER RSS

OR ts mn Aa tem eine
Ange Don ne

24. 1 When tested 101, the tfsence id sould se oly at 64°C and above. At ower
temperate, he Midis viseoeas: hace, he visosy reported on the certe by
Canon val no wc he complex coi y" = G10 es determined fo he

© Bubble in the Mid wil have a drama eet he escu value of 6. The uid inthe
tole shouldbe fief bes and are must be ken not o noce babes when
repaint specimens Recommended procedures o preparing est specimens ae given in
pandeo

x.

“CALCULATION OF G* FROM STEADY-STATE VISCOSITY
(MEASUREMENTS

Among te diferent methods for converting between dynamic and steady st viscosity of
Polymer tmnt popular and mst success ne oa Cox Mors empl ne The lo
Tend, in simple lems, oth allowing approximation

a ay

pr

ho complex modulus,
the angular quency in din; and

the shen rate independent capillary viscosity as reported the supplier o the reference
‘uid

seg

For this eo apply the messen nt bein he viscous gion where he phase ange
‘poste 30 dec The ve ofthe complex mods sen simply 10 times te als of
"cpu viscosity. Pr example, he cpiay viscosity i 270,00 mPa te comple
moduli

(G* kPa (270,0 PsP, 00,000 Pa 10 al) = 2.70 Parad aa

“The ofrece Mi alavesa vico ida 64°C ad above and provides ery accurate
estate of @* ove 6°C. AC temperate below SC te tad ives one vals or Ge
‘id the or increasing ase traue depa rom 61°C, AL LC and above divided by
tho tequeney in radins per send shold be no mare fan 3 peat fret thm ico
Pinte onthe ote nb If tet as, he ie Jorge ali sould be considered

x73,
Zu

METHODS FOR TRANSFERRING THE FLUID TO THE TEST PLATES:
“Tce deem methods ae recommended fr rang he id othe tet plates

“Th las rod med (Section XT.) the spatula method (Seton X7.) anda rest metio
‘were a enable est ee eld ie contact i th din the bile Seton XT.)

(ae Rod Med (Figure X.

An this mod alas vd irn the id and stated (Step 1) i in the Mi
Coote robin he oad pul oy om the Dd (Step 2) cari a sal ssf the
‘sd vt od. Touch the ns 1 th plate (Sep 3) 1 ner he Dud othe plate See
igo X71

=

5 SHS

BU Amaia ca Sit hn Topi i
agan Don sine pee

25. Figure X7.1—Using a Gas Rod to Mac the Reference Fu on the Plate

x74,

x15

Spatula Method (gore X72:

Whe early wed spat may bo und to sfr th Ud. Seca caro ast bo take noto
pi she mater scope rm th ote (Step 1) Snes he mas o he sata onto o

plate (Step 2) and ut th us fom the spat by raw the pata aros the ee of te plie
(Ste 3) This method appears tobe the mos del implement and 5 the lest recomendo

beth tse etd

Figure X7.2—Using Spatula to Place lo Reference Fido he Pte

x76,

LE]

inet Tach Method Pare 37.9) de home bs pp vit plate at may be
removed and reinstalled without affecting the ap rence, remove one of the sand touch
the snc oo pato o the sra ofthe i the ot (Step 1) Pal he plate on the
bots, unn 3 mse othe fa lo wth he plat (Step 2). lover the lt ad alo the
‘ido out into a mshioo shape (Step 3)

Tasa ASHTO

EIN te Asc Aut Se Viga gti te
Al D aval ple

26. Figure X7.3 Disc Touch Method to Place the Reference Pd one Plate

Proceed imedately o Section 19: vo in he eernce Quid pein and on the go.
Proced with esting the reference Mid specimen as described in Scion 11

pal ‘SELECTION OF GAP CLOSURE TO OBTAIN BULGE
a1 sd fr courte Meaarement of Spcinen ameter:
xa, The ccuacy of he DSK measurements depends on acute measurement of te diameter af

‘hotest pee. The diameter ofthe test specimen assumed be equal 1 he diameter o he
{ox plates Fortis ein, ds inmi o exces Binder andthe Bal lost of the ap o
produce lig lg in ho tet specimen ar rl tps in the DSR ts procedure. When the
tap la Ana dimension, the bilge aut be of suit sizt componente os any
Srinkage inthe binder nd consequanly sting a cancave suce show in Figure X8
‘The diameter of he et specimen a Figure XE. approaches df afer an ie distro Be
athe modus, Galle according os flown equation

12) es»

8 = complex mods;
Y torque applied est specimen
h = ‘Wiles of tet species:

9 = engularorion, dans and
P= radusof te plate

is EE] ‘AASHTO

Py ec sisi Sl ad Tempo nic
re Im wattle

27. Figure X8.1—Coseave Sure Rein,
fom Icaficion Close aer Timing

Figure X8.2-—Proper Bugs

xa.

According to Equation X81. the mods depend nh cas (or dametr raised tte Furth
per Therefore, mal conc in Die ome fac ofthe tet porn, ash ia
igre X61, il have age fect on the ensured modul bese the aca! pci
(mer mil be les than the pate diameter For piven amour of one, theft on the
‘neared modus geste fr the Bau plate an 25 plate. À mor desrable sul à
Sigh bulge silleuated in Figure X82 Sheu sueses ar ot used rec) Ton he plate
Vo be overhanging binder, ere, Be lfc af alight bale on de measured modal is much
Tecna conca shoul bo noted a ers inthe diameter of te et speimen do
race messred values ofthe par ope

xo
xa.

'ECOMMENDED GAP CLOSURE VALUES

Recommended values fr the gp sure seed 1 form a less the et tempera simile
te th bale luted in Figure Er ven in Seton 10 5 2 0 Jn ad 10 jun fr the

2S nd on plates, respectively. Abou} hese values may be appropriate fr many
meer, y may ot be apprit or al het The spl ofthese vals ou
‘pes theometet may be determined by preparing test specie using the recomended
‘fost and obren the eae ofthe al fr nal nr of the pp and afer eet
Specimen th temperature. the recommended closure ales d nt give an propre
Ba, he recommended closure value shoud be aut s apropia.

Proper an imprope bulges ae shown in FiguesX101 non X103. A magnfing pass
etl or examining he shape of tc ble, Regards ofthe cor requed o produce a
derbe bolo, th scl gap should be ed nth eens

io.
x104.

FACTORS AFFECTING BULGE DEVELOPMENT

A mune of ict en alee bulge formed al the es temperature, These nudo

=

731626 FASO

37 An Ann Ste and Tao i
gnc ie own io

28. ln Thema of losas wd to create the bulge

(© The disen in temperature tween te min tempera, o temperate at wich
the his created nd ete empertre

2 Thermal expansion conan carctcisis o the theme,

m Thermal euren and expansion ofthe pal binder

‘A concave stasis mare ely o Som al he intermediate temperaturas, tha st the upper test
‘eperatrs (nm plate athe tn the 28m pla) nac, he hiper temperatures
‘excessive mater cn be sqpezed om th plais as shown in iure XI0 3. This station
‘ould nso be vided and may equis gap loss somewhat han the recommend values

Figure X10.2Consave Dales

eh via

SOY A Ata eur Ts pas Oe
send ción e il ee

29. Figure X10.3--Oveired Bape

x. DETERMINATION OF TIME TO THERMAL EQUILIBRIUM

xa. Rasen fr Deiernining Tine Required o Obi Thermal Eguren:

IRA. Alec th test specimens ben counted in he DSR takes ome ine fr asp hinder
Beten the te plate to reach mal ulin, Because of thea rant in he est.
lls ad especie, it may tk lange fr he est pecimen to come thomas
{han the ie indicated by the DSR mame, Fete 1 necesany lo experimentally
‘tein te tie eqite or he test secan fo each tera gula

HE. Theme required obtain thorn eu varios dicen rheometer Factors tft
{heme required for heal egin ine:

MAR Designof he rheometer and whether so tiga is weds a heninpcoling medium;

XMAA Difence between anbient temperature andthe ts peat, diferent when teng below
room empertr, and above rom tempera

MS Difscoc tempera between the timing and est pert; and

ARS. Plein fr fa nd 25: plats

xin "Wis not possible to specify single me a mori o obtain thermal qin. For
sample hel equim tected mu ques wi ui could diameters an wilt
Fiol iteometer. This res hat he neo Ha ira be ease or
individ icones, pica Winning and testing temperature, esting conditions

xı2, METHOD TO DETERMINE THE TIME REQUIRED TO OBTAIN
THERMAL EQUILIBRIUM

xia. A reihe estimate ofthe ine required for tera libro can be bain by monitoring the
DDSR temperature and he complex mods of a sale mounted bete he est pates Because
Che modus il sensitive o temperate isan exelent instr of tera guia
‘The flowing proceda commen or bling be ie o thecal equal

“ss THE RSS

ao Amen Aia Se ght ile
ed D a co

30. xt22

xı2a

Mount inde sample in the DSK nd rim in he usual manne, Cesta bl nd bring he et
ambar rio the tet temperate

Operate the heometein conti mode a 10 ra ing an umm aa binder—one

‘hat does not change modulus with repented shearing. Use the smallest strain value that gives good
easement resol

Recor the modulus at 30 time intra, and po he modus versus me (Fire X12.

panne

[Te ana ana

im 4 :
7
i

im,

Figure X12:1—Detemining Thermal gilriom Time

x125,

x26,

“Te et reach hema
‘hs ino vl be renter tha
emote

run sh time required rch cost modos Typically,
etme quedo each à constant Fa on the DSR

een fe eed o reach heal eli wll ay wi the temperature and
tesis coin, he tie 1 heal equlvin sould be still separately fr both
intermediate nd ighempertae mesuremete Once tho me 1 teal equiv has been
bite i doesnot have 1 be epesed vales he est cantons change

Sa

THE ARTE

Samy ur Ania Acte of Se Torn ot
une Deen vico cb

31. x. SAMPLE REPORT

eae Information
em Das Gp 1 en

por agen cor Te ay
Feine DT Ir ee
EUA aparta tao BARRE
Fin ETS ar a TE eo
tne om ES nei
ERA se Bao Von TE one

Test Real for Grading (Ue spare coum or ach est temperature

Da T pa T Du
Msn ones | Got | Gus | Ges
een Ba [or [tas am
Ses Ano CEI ICI TI ET
Ss Angi peca CIO ICI ATC MT
Fa Aedes ce M me mr
es Malia ea m af om
pe tun» us na ug Se ea Teer

Ge oly DR ln np TE
As, spe i cpr mer omc a aT DR

“Tet Reals for ar Detention:

Das Gop

Tele keyenssars | nor
Dados | Bas Gow] Dam Gop | Dan our Ban Ge

ios Apa SS m ‘| avo CB TH
Come CS DC CI CI BR HT
Te ge ose ECO CC OS es wa MT
Alef e pr mat men Te, gn De a

«= Tess AASHTO

ea I Amen Acne ig an ea de
Alan Pecos ane yc

32. xia, REFERENCES

xa. ‘Andes, D À and M Marsan. Manual of Practice for Testing Aal Rider
‘Aecontance with de Supero PG Gry Stem. The Peas Transportation lite,
‘The Peanslvaia Suse Univesity, PTT 2K07, November 199 (Revised Feb 2002)

142, Anderson, DA, €. E Ale, K Knell, and Y Lin leraborfry Test Prog to
Determine the Itr- nd oa Laborator) Vara of the SHRP dpa Bader Test
FHWA, 1997

xs (Go WP and EH Merz. Colon of Dynamic an Send Flow Virosis Jonna of

Pole Since, ol. 25, 198, pp. 619-22

xt, Wat, Handbook of Sata Method for Engine und Sci Mersch,
[Now Yet, NY, 1990

"Forms AASITFO Prison Stand

PS Fs published al standard n 2002

se Ts AASHTO

Annee Dupont val aye