ASTM_D_7175_-_15.pdf

Designation:D717515Standard Test Method forDetermining the Rheological Properties of Asphalt BinderUsing a Dynamic Shear Rheometer1This standard is issued under the fixed designation D7175;the number immediately following the designation indicates the year oforiginal adoption or,in the case of revision,the year of last revision.A number in parentheses indicates the year of last reapproval.Asuperscript epsilon()indicates an editorial change since the last revision or reapproval.1.Scope1.1 This test method covers the determination of the dy-namic shear modulus and phase angle of asphalt binders whentested in dynamic(oscillatory)shear using parallel plategeometry.It is applicable to asphalt binders having dynamicshear modulus values in the range from 100 Pa to 10 MPa.Thisrange in modulus is typically obtained between 4 and 88C at10 rad/s.This test method is intended for determining the linearviscoelastic properties of asphalt binders as required forspecification testing and is not intended as a comprehensiveprocedure for the full characterization of the viscoelasticproperties of asphalt binders.1.2 This standard is appropriate for unaged materials,ma-terial aged in accordance with Test Method D2872,materialaged in accordance with Practice D6521,or material aged inaccordance with both Test Method D2872 and Practice D6521.This procedure is limited to asphalt binders that containparticles with largest dimension less than 250 m.1.3 The values stated in SI units are to be regarded asstandard.No other units of measurement are included in thisstandard.1.4 This standard may involve hazardous materials,operations,and equipment.This standard does not purport toaddress all of the safety concerns,if any,associated with itsuse.It is the responsibility of the user of this standard toestablish appropriate safety and health practices and deter-mine the applicability of regulatory limitations prior to use.2.Referenced Documents2.1 ASTM Standards:2C670 Practice for Preparing Precision and Bias Statementsfor Test Methods for Construction MaterialsD140 Practice for Sampling Bituminous MaterialsD2170 Test Method for Kinematic Viscosity of Asphalts(Bitumens)D2171 Test Method for Viscosity of Asphalts by VacuumCapillary ViscometerD2872 Test Method for Effect of Heat and Air on a MovingFilm of Asphalt(Rolling Thin-Film Oven Test)D6373 Specification for Performance Graded AsphaltBinderD6521 Practice for Accelerated Aging of Asphalt BinderUsing a Pressurized Aging Vessel(PAV)E77 Test Method for Inspection and Verification of Ther-mometersE563 Practice for Preparation and Use of an Ice-Point Bathas a Reference TemperatureE644 Test Methods for Testing Industrial Resistance Ther-mometersE882 Guide for Accountability and Quality Control in theChemical Analysis Laboratory2.2 AASHTO Standards:3M320 Standard Specification for Performance-Graded As-phalt BinderR29 Practice for Grading or Verifying the PerformanceGrade of an Asphalt BinderT315 Standard Test Method for Determining the Rheologi-cal Properties of Asphalt Binder Using a Dynamic ShearRheometer2.3 Deutsche Industrie Norm(DIN)Standard:443760 Standard for Calibration of Thermocouples3.Terminology3.1 Definitions of Terms Specific to This Standard:3.1.1 annealing,nthe process of removing the effects ofsteric hardening by heating the binder until it is sufficientlyfluid so that it can be easily poured.1This test method is under the jurisdiction of ASTM Committee D04 on Roadand Paving Materials and is the direct responsibility of Subcommittee D04.44 onRheological Tests.Current edition approved July 1,2015.Published August 2015.Originallyapproved in 2005.Last previous edition approved in 2008 as D7175 08.DOI:10.1520/D7175-15.2For referenced ASTM standards,visit the ASTM website,www.astm.org,orcontact ASTM Customer Service at serviceastm.org.For Annual Book of ASTMStandards volume information,refer to the standards Document Summary page onthe ASTM website.3Available from American Association of State Highway and TransportationOfficials(AASHTO),444 N.Capitol St.,NW,Suite 249,Washington,DC 20001,http:/www.transportation.org.4Available from Beuth Verlag GmbH(DIN-DIN Deutsches Institut furNormung e.V.),Burggrafenstrasse 6,10787,Berlin,Germany,http:/www.en.din.de.Copyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United States1 3.1.2 asphalt binder,nan asphalt-based cement that isproduced from petroleum residue either with or without theaddition of non-particulate modifiers.3.1.3 complex shear modulus(G*),nratio calculated bydividing the absolute value of the peak-to-peak shear stress,by the absolute value of the peak-to-peak shear strain,.3.1.4 dummy test specimen,na specimen formed betweenthe DSR test plates from asphalt binder or other polymer forthe purpose of determining the temperature in the asphaltbinder between the plates.3.1.4.1 DiscussionThe dummy test specimen is not usedto measure the rheological properties of asphalt binder but isused sole