【英文标准名称】:StandardTestMethodforEffectivePorosityandEffectiveAirVoidsofCompactedBituminousPavingMixtureSamples
【原文标准名称】:压实沥青铺路混合料样品的有效孔隙率和有效气隙的标准试验方法
【标准号】:ASTMD7063-2005
【标准状态】:现行
【国别】:
【发布日期】:2005
【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】:D04.21
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:沥青;混合物;试样;路面;道路建筑;施工材料;有效;气隙;压实;孔隙率;试验
【英文主题词】:bituminouspavingmixtures;bulkspecificgravity;compactedsamples;density;permeability;porosity
【摘要】:Inthistestmethodacompactedsampleisvacuumsealedinsideaplasticbag.Thedensityofthesample,SG1,iscalculatedusingawaterdisplacementmethod,withthesamplesealed.Withthesamplestillinwater,thebagiscutopen.Sincethesampleisundervacuumandtheairvoidsareevacuated,waterwillrushintofillallthewateraccessibleairvoidsinthecompactedsample.Withthesaturatedweightofsampleknown,anapparentmaximumdensity,SG2,canbecalculated.ThedifferencebetweenSG2andSG1isthemeasureoftheamountofwaterthathaspenetratedthecompactedsample.Thisdifferencecanbeusedtodeterminethefractionoftotalnumberofvoidsthatareaccessibletowater,EffectivePercentPorosityorPercentEffectiveAirVoids.Theresultsobtainedfromthismethodcanbeusedtodeterminethepercentageoftotalairvoidsinacompactedsamplethatcanbefilledwithwaterthroughsurfaceorinterconnectedpathswithinthesample.Ingeneral,EffectivePercentPorosityshouldbelessthantotalpercentairvoids.Thismethodcanbeusedfor100mmand150mmdiametercylindricalsamplesandcubicalsamples.1.1Thistestmethodcoversthedeterminationofeffectiveporosityoreffectiveairvoidsofcompactedmixturesbytheuseofavacuumsealingmethod.1.2Thismethodcanbeusedforcompactedfieldandlaboratorybituminouspavingsamples,aswellasothercompactedsampleswithwelldefinedgeometricalshapes,suchasconcretecylinders,coredrocks,andmetalsamples.1.3Theresultsofthistestmethodcanbeusedtodeterminethedegreeofinterconnectivityofairvoidswithinasampleandcanbecorrelatedtopermeabilityofcompactedbituminouspavingmixturesamples.1.4Amulti-laboratoryprecisionandbiasstatementforthisstandardhasnotbeendevelopedatthistime.Therefore,thisstandardshouldnotbeusedforacceptanceorrejectionofamaterialforpurchasingpurposes.1.5Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatoryrequirementspriortouse.
【中国标准分类号】:Q20
【国际标准分类号】:93_080_20
【页数】:4P.;A4
【正文语种】: