Designation:D4402/D4402M−15StandardTestMethodforViscosityDeterminationofAsphaltatElevatedTemperaturesUsingaRotationalViscometer1ThisstandardisissuedunderthefixeddesignationD4402/D4402M;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.ThisstandardhasbeenapprovedforusebyagenciesoftheU.S.DepartmentofDefense.1.Scope1.1Thistestmethodoutlinesaprocedureformeasuringtheapparentviscosityofasphaltfrom38to260°C[100to500°F]usingarotationalviscometerandatemperature-controlledthermalchamberformaintainingthetesttemperature.1.2ThevaluesstatedineitherSIunitsorinch-poundunitsaretoberegardedseparatelyasstandard.Thevaluesstatedineachsystemmaynotbeexactequivalents;therefore,eachsystemshallbeusedindependentlyoftheother.Combiningvaluesfromthetwosystemsmayresultinnon-conformancewiththestandard.1.3Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafetyandhealthpracticesanddeterminetheapplica-bilityofregulatorylimitationspriortouse.See10.6forspecificprecautionaryinformation.2.ReferencedDocuments2.1ASTMStandards:2E644TestMethodsforTestingIndustrialResistanceTher-mometersE1137SpecificationforIndustrialPlatinumResistanceTher-mometersE2975TestMethodforCalibrationofConcentricCylinderRotationalViscometers3.Terminology3.1Definitions:3.1.1apparentviscosity,n—theratioofshearstresstoshearrateforaNewtonianornon-Newtonianliquid.3.1.2filledasphalt,n—anasphaltblendthatcontainsfinelydispersedinsolublemineralmatter.3.1.3Newtonianliquid,n—aliquidforwhichtherateofshearisproportionaltotheshearingstress.Theconstantratiooftheshearingstresstotherateofshearistheviscosityoftheliquid.TheviscosityofaNewtonianliquidisthereforenotdependentonitsshearrate.Iftheratioisnotconstant,theliquidisnon-Newtonian.Many...
