【英文标准名称】:StandardTestMethodforDensity(UnitWeight),Yield,andAirContent(Gravimetric)ofConcrete
【原文标准名称】:混凝土的密度(单位重量),产量以及含气量测定的标准试验方法
【标准号】:ASTMC138/C138M-2010b
【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】:空气含量;水泥含量;混凝土;相对产量;单位重量;(烧结)收得率;单位重;水泥含量(混凝土)
【英文主题词】:aircontent;cementcontent;concrete;relativeyield;unitweight;yield;Unitweight;Cementcontent(ofconcrete)
【摘要】:1.1Thistestmethodcoversdeterminationofthedensity(seeNote1)offreshlymixedconcreteandgivesformulasforcalculatingtheyield,cementcontent,andaircontentoftheconcrete.Yieldisdefinedasthevolumeofconcreteproducedfromamixtureofknownquantitiesofthecomponentmaterials.1.2ThevaluesstatedineitherSIunitsorinch-poundunitsaretoberegardedseparatelyasstandard.Thevaluesstatedineachsystemmaynotbeexactequivalents;therefore,eachsystemshallbeusedindependentlyoftheother.Combiningvaluesfromthetwosystemsmayresultinnon-conformancewiththestandard.Note18212;Unitweightwasthepreviousterminologyusedtodescribethepropertydeterminedbythistestmethod,whichismassperunitvolume.1.3Thetextofthistestmethodreferencesnotesandfootnotesthatprovideexplanatoryinformation.Thesenotesandfootnotes(excludingthoseintables)shallnotbeconsideredasrequirementsofthistestmethod.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】: