【英文标准名称】:StandardTestMethodforSlumpofHydraulic-CementConcrete
【原文标准名称】:水硬性水泥混凝土坍落度的标准试验方法
【标准号】:ASTMC143/C143M-2010a
【标准状态】:现行
【国别】:
【发布日期】:2010
【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】:C09.60
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:混凝土;混凝土塌落度;圆锥;一致性;塑性;坍落度;可加工性;圆锥试验;稠度
【英文主题词】:concrete;concreteslump;cone;consistency;plasticity;slump;workability;Conetests;Consistency
【摘要】:Thistestmethodisintendedtoprovidetheuserwithaproceduretodetermineslumpofplastichydraulic-cementconcretes.Note18212;Thistestmethodwasoriginallydevelopedtoprovideatechniquetomonitortheconsistencyofunhardenedconcrete.Underlaboratoryconditions,withstrictcontrolofallconcretematerials,theslumpisgenerallyfoundtoincreaseproportionallywiththewatercontentofagivenconcretemixture,andthustobeinverselyrelatedtoconcretestrength.Underfieldconditions,however,suchastrengthrelationshipisnotclearlyandconsistentlyshown.Careshouldthereforebetakeninrelatingslumpresultsobtainedunderfieldconditionstostrength.Thistestmethodisconsideredapplicabletoplasticconcretehavingcoarseaggregateupto11/2in.[37.5mm]insize.Ifthecoarseaggregateislargerthan1x00BD;in.[37.5mm]insize,thetestmethodisapplicablewhenitisperformedonthefractionofconcretepassinga1x00BD;-in.[37.5-mm]sieve,withthelargeraggregatebeingremovedinaccordancewiththesectiontitledx201C;AdditionalProcedureforLargeMaximumSizeAggregateConcretex201D;inPracticeC172.Thistestmethodisnotconsideredapplicabletonon-plasticandnon-cohesiveconcrete.Note28212;Concreteshavingslumpslessthanx00BD;in.[15mm]maynotbeadequatelyplasticandconcreteshavingslumpsgreaterthanabout9in.[230mm]maynotbeadequatelycohesiveforthistesttohavesignificance.Cautionshouldbeexercisedininterpretingsuchresults.1.1Thistestmethodcoversdeterminationofslumpofhydraulic-cementconcrete,bothinthelaboratoryandinthefield.1.2ThevaluesstatedineitherSIunitsorinch-poundunitsaretoberegardedseparatelyasstandard.Withinthetext,theSIunitsareshowninbrackets.Thevaluesstatedineachsystemmaynotbeexactequivalents;therefore,eachsystemshallbeusedindependentlyoftheother.Combiningvaluesfromthetwosystemsmayresultinnon-conformancewiththestandard.1.3Thetextofthisstandardreferencesnotesandfootnoteswhichprovideexplanatorymaterial.Thesenotesandfootnotes(excludingthoseintablesandfigures)shallnotbeconsideredasrequirementsofthestandard.1.4Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.(WarningFreshhydrauliccementitiousmixturesarecausticandmaycausechemicalburnstoskinandtissueuponprolongedexposure.)
【中国标准分类号】:Q13
【国际标准分类号】:91_100_30
【页数】:4P.;A4
【正文语种】: