ASTM D4957-2008 用真空毛细管粘度计测定沥青乳液残余物和非牛顿沥青表观粘度的试验方法

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【英文标准名称】:StandardTestMethodforApparentViscosityofAsphaltEmulsionResiduesandNon-NewtonianBitumensbyVacuumCapillaryViscometer
【原文标准名称】:用真空毛细管粘度计测定沥青乳液残余物和非牛顿沥青表观粘度的试验方法
【标准号】:ASTMD4957-2008
【标准状态】:现行
【国别】:美国
【发布日期】:2008
【实施或试行日期】:
【发布单位】:美国材料与试验协会(US-ASTM)
【起草单位】:D04.44
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:
【英文主题词】:asphalt;capillary;vacuum;viscometer;viscosity;Asphaltpavingmixtures;Bituminousmaterials/applications;Flowandflowrate--asphalts;Non-Newtonianbitumens;Residue;Sheartesting--aggregate/bituminousmaterials;Viscometers--vacuumcapillary;Vis
【摘要】:Thistestmethodisusefulforcharacterizingtheflowbehaviorofasphaltemulsionresiduesandnon-Newtonianbitumens.However,sincenon-Newtonianviscosityvaluesdependonthelevelofshearingstress,itsduration,andtheshearhistoryofthematerial,anon-Newtonianviscosityisnotauniquematerialproperty.Instead,itisaparameterwhichischaracteristicofthefluid-viscometersystemundertheconditionsofthemeasurementprocedure.Therefore,comparisonsofnon-Newtonianmaterialbehaviorshouldonlybemadeusingapparentviscositiesdeterminedinsimilarviscometersundersimilarconditionsofshearingstressandstresshistory.Proceduresofsamplepreparationareespeciallyimportantforrepeatabilityorreproducibilityoftestresults.1.1ThistestmethoddescribesproceduresprimarilydesignedtodeterminetheapparentviscositiesofresiduesobtainedbydistillingasphaltemulsionsaccordingtoTestMethodD6997x0060;.Itisalsorecommendedforuseonnon-Newtonianasphaltsatanytemperaturewithinthecapabilityoftheapparatus.Thistestmethodisusefulincharacterizingrheologicalpropertiesofnon-Newtonianbitumensasafunctionofshearrateundertheconditionsofthetestmethod.Thistestisruninstraightopen-endtubeviscometers,normallyat60x00B0;C(140x00B0;F),butissuitableforuseatothertemperatures.Itisapplicableovertherangefrom5to50000Pax00B7;s(50to500000P).Note18212;Theprecisionforthistestmethodisbasedondeterminationsmadeat60x00B0;C(140x00B0;F).1.2Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:E43
【国际标准分类号】:93_080_20
【页数】:7P.;A4
【正文语种】:英语