1、Designation:D4402/D4402M15(Reapproved 2022)Standard Test Method forViscosity Determination of Asphalt at ElevatedTemperatures Using a Rotational Viscometer1This standard is issued under the fixed designation D4402/D4402M;the number immediately following the designation indicates theyear of original
2、adoption or,in the case of revision,the year of last revision.A number in parentheses indicates the year of lastreapproval.A superscript epsilon()indicates an editorial change since the last revision or reapproval.This standard has been approved for use by agencies of the U.S.Department of Defense.1
3、.Scope1.1 This test method outlines a procedure for measuring theapparent viscosity of asphalt from 38 to 260 C 100 to 500 Fusing a rotational viscometer and a temperature-controlledthermal chamber for maintaining the test temperature.1.2 The values stated in either SI units or inch-pound unitsare t
4、o be regarded separately as standard.The values stated ineach system are not necessarily exact equivalents;therefore,toensure conformance with the standard,each system shall beused independently of the other,and values from the twosystems shall not be combined.1.3 This standard does not purport to a
5、ddress all of thesafety concerns,if any,associated with its use.It is theresponsibility of the user of this standard to establish appro-priate safety,health,and environmental practices and deter-mine the applicability of regulatory limitations prior to use.See 10.6 for specific precautionary informa
6、tion.1.4 This international standard was developed in accor-dance with internationally recognized principles on standard-ization established in the Decision on Principles for theDevelopment of International Standards,Guides and Recom-mendations issued by the World Trade Organization TechnicalBarrier
7、s to Trade(TBT)Committee.2.Referenced Documents2.1 ASTM Standards:2E644 Test Methods for Testing Industrial Resistance Ther-mometersE1137/E1137M Specification for Industrial Platinum Resis-tance ThermometersE2975 Test Method for Calibration or Calibration Verifica-tion of Concentric Cylinder Rotatio
8、nal Viscometers3.Terminology3.1 Definitions:3.1.1 apparent viscosity,nthe ratio of shear stress to shearrate for a Newtonian or non-Newtonian liquid.3.1.2 filled asphalt,nan asphalt blend that contains finelydispersed insoluble mineral matter.3.1.3 Newtonian liquid,na liquid for which the rate ofshe
9、ar is proportional to the shearing stress.The constant ratioof the shearing stress to the rate of shear is the viscosity of theliquid.The viscosity of a Newtonian liquid is therefore notdependent on its shear rate.If the ratio is not constant,theliquid is non-Newtonian.Many liquids exhibit both Newt
10、onianand non-Newtonian behavior,depending on the shear rate ortemperature,or both.3.1.4 shear rate,nthe measure of the speed at which theintermediate layers of the liquid move with respect to eachother.Its unit of measure is the reciprocal second(sec1).3.1.5 shear stress,nthe force per unit area req
11、uired toproduce the shearing action.Its SI unit of measurement is thepascal,and its cgs unit of measurement is dynes/cm2.3.1.6 viscosity,nthe ratio between the applied shear stressand the rate of shear is called the coefficient of viscosity.Thiscoefficient is a measure of the resistance to flow of t
12、he liquid.The SI unit of viscosity is the pascal second(Pas).Thecentimetre gram second(cgs)unit of viscosity is the poise(dynes/cm2)and is equivalent to 0.1 Pas.Frequently,centi-poise(cP)equal to one millipascal second(mPas)is usedas the viscosity unit.3.2 Definitions of Terms Specific to This Stand
13、ard:3.2.1 apparatus-measuring geometry,nthe part of theequipment that is immersed in the asphalt sample,the dimen-sions of which are used,in conjunction with the rotationalresisting torque,to calculate the apparent viscosity.Thisgeometry may be referred to by the equipment manufacturer asa spindle,b
14、ob,inner concentric cylinder,vane,and so forth.1This test method is under the jurisdiction ofASTM Committee D08 on Roofingand Waterproofing and is the direct responsibility of Subcommittee D08.03 onSurfacing and Bituminous Materials for Membrane Waterproofing and Built-upRoofing.Current edition appr
15、oved May 1,2022.Published May 2022.Originallyapproved in 1984.Last previous edition approved in 2015 as D4402/D4402M 15.DOI:10.1520/D4402_D4402M-15R22.2For referenced ASTM standards,visit the ASTM website,www.astm.org,orcontact ASTM Customer Service at serviceastm.org.For Annual Book of ASTMStandard
16、s volume information,refer to the standards Document Summary page onthe ASTM website.Copyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United StatesThis international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for theDevelopment of International Standards,Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade(TBT)Com
