Designation:D5581−07a(Reapproved2021)´1StandardTestMethodforResistancetoPlasticFlowofBituminousMixturesUsingMarshallApparatus(6in.DiameterSpecimen)1ThisstandardisissuedunderthefixeddesignationD5581;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.ε1NOTE—Section1wasupdatededitoriallyinDecember2021.1.Scope1.1Thistestmethodcoversthemeasurementoftheresis-tancetoplasticflowofcylindricalspecimensofbituminouspavingmixtureloadedonthelateralsurfacebymeansoftheMarshallapparatus.Thistestmethodisforusewithmixturescontainingasphaltcementandaggregateupto11⁄2in.(37.5mm)nominalmaximumsize.1.2Thevaluesstatedininch-poundunitsaretoberegardedasstandardexceptforreferencetosievesizesandsizeofaggregateasmeasuredbytestingsievesinwhichSIunitsarestandardaccordingtoSpecificationE11.ThevaluesgiveninparenthesesaremathematicalconversionstoSIunitsthatareprovidedforinformationonlyandarenotconsideredstandard.1.3Thetextofthisstandardreferencesnotesandfootnoteswhichprovideexplanatorymaterial.Thesenotesandfootnotes(excludingthoseintablesandfigures)shallnotbeconsideredasrequirementsofthestandard.1.4Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafety,health,andenvironmentalpracticesanddeter-minetheapplicabilityofregulatorylimitationspriortouse.1.5Thisinternationalstandardwasdevelopedinaccor-dancewithinternationallyrecognizedprinciplesonstandard-izationestablishedintheDecisiononPrinciplesfortheDevelopmentofInternationalStandards,GuidesandRecom-mendationsissuedbytheWorldTradeOrganizationTechnicalBarrierstoTrade(TBT)Committee.2.ReferencedDocuments2.1ASTMStandards:2C670PracticeforPreparingPrecisionandBiasStatementsforTestMethodsforConstructionMaterialsD2493/D2493MPracticeforViscosity-Temper...