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【英文标准名称】:StandardPracticeforPreparationofTestSpecimensofAsphalt-StabilizedSoils
【原文标准名称】:沥青固定土壤的试样制备的标准操作规程
【标准号】:ASTMD4223-1999(2006)
【标准状态】:现行
【国别】:
【发布日期】:1999
【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】:D18.15
【标准类型】:(Practice)
【标准水平】:()
【中文主题词】:工艺;地沥青;施工材料;建筑;土壤;准备;试样
【英文主题词】:asphalt-stabilization;soilstabilization;specimenpreparation;testspecimens
【摘要】:Thispracticeisintendedforthepreparationofstandardspecimensofsoil-asphaltmixturessuitablefortestsofTestMethodsD1559,D1560,D1561,D4123,andothertestsusingspecimensoftheabovedimensions.Thispracticeislimitedtoonlyfine-grainedsoilsasdefinedin6.1.Note18212;Thequalityoftheresultsproducedbythispracticeisdependentonthecompetenceofthepersonnelperformingitandthesuitabilityoftheequipmentandfacilitiesused.AgenciesthatmeetthecriteriaofPracticeD3740aregenerallyconsideredcapableofcompetentandobjectivetesting,sampling,inspection,andsoforth.UsersofthispracticearecautionedthatcompliancewithPracticeD3740doesnotinitselfensurereliableresults.Reliableresultsdependonmanyfactors;PracticeD3740providesameansofevaluatingsomeofthosefactors.1.1Thispracticecoverstheselectionandproportioningofsoilsandemulsifiedorcutbackasphaltsandthefabricationof4-in.(102-mm)diameterby2.5-in.(54-mm)hightestspecimens.1.2AllobservedandcalculatedvaluesshallconformtotheguidelinesforsignificantdigitsandroundingestablishedinPracticeD6026.1.3Thevaluesstatedininch-poundunitsaretoberegardedasstandard,exceptasnotedasfollows.ThevaluesgiveninparenthesesaremathematicalconversionstoSIunits,andareprovidedforinformationonlyandarenotconsideredstandard.1.3.1Thegravitationalsystemofinch-poundunitsisusedwhendealingwithinch-poundunits.Inthissystem,thepound(lbf)representsaunitofforce(weight),whiletheunitformassisslugs.1.3.2Theslugunitofmassisalmostneverusedincommercialpractice(density,scales,balances,andsoforth).Therefore,thestandardunitformassinthispracticeiseitherkilogram(kg)orgram(g),orboth.Also,theequivalentinch-poundunit(slug)isnotgiven.1.3.3Itiscommonpracticeintheengineering/constructionprofessionintheUnitedStatestoconcurrentlyusepoundtorepresentbothaunitofmass(lbm)andofforce(lbf).Thisusecombinestwoseparatesystemofunits,theabsolutesystemandthegravitationalsystem.Itisscientificallyundesirabletocombinetheuseoftwoseparatesetsofinch-poundunitswithinasinglestandard.Asstatedin,thispracticeusesthegravitationalsystemanddoesnotpresenttheslugunitformass.However,theuseofscalesorbalancesrecordingpoundsofmass(lbm)ortherecordingofdensityinlbm/ft3shallnotberegardedasnonconformancewiththispractice.1.4Thispracticeoffersasetofinstructionsforperformingoneormorespecificoperations.Thisdocumentcannotreplaceeducationorexperienceandshouldbeusedinconjunctionwithprofessionaljudgment.Notallaspectsofthispracticemaybeapplicableinallcircumstances.ThisASTMstandardisnotintendedtorepresentorreplacethestandardofcarebywhichtheadequacyofagivenprofessionalservicemustbejudged,norshouldthisdocumentbeappliedwithoutconsiderationofaproject''smanyuniqueaspects.Theword"Standard"inthetitleofthisdocumentmeansonlythatthedocumenthasbeenapprovedthroughtheASTMconsensusprocess.Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:P20
【国际标准分类号】:93_020
【页数】:5P.;A4
【正文语种】: