【英文标准名称】:StandardSpecificationforCoalFlyAshandRaworCalcinedNaturalPozzolanforUseinConcrete
【原文标准名称】:混凝土中使用的煤飞灰和未处理的或煅烧的天然火山灰的标准规范
【标准号】:ASTMC618-2008a
【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】:C09.24
【标准类型】:(Specification)
【标准水平】:()
【中文主题词】:
【英文主题词】:flyash;naturalpozzolan;pozzolans;Calcinedpozzolans;Cementmaterials/applications--specifications;Coalflyash;Concreteadmixtures--specifications;Concreteconstructionmaterials/applications--specifications;Flyashandotherpozzolans;Portla
【摘要】:1.1Thisspecificationcoverscoalflyashandraworcalcinednaturalpozzolanforuseinconcretewherecementitiousorpozzolanicaction,orboth,isdesired,orwhereotherpropertiesnormallyattributedtoflyashorpozzolansmaybedesired,orwherebothobjectivesaretobeachieved.Note18212;Finelydividedmaterialsmaytendtoreducetheentrainedaircontentofconcrete.Hence,ifaflyashornaturalpozzolanisaddedtoanyconcreteforwhichentrainmentofairisspecified,provisionshouldbemadetoensurethatthespecifiedaircontentismaintainedbyaircontenttestsandbyuseofadditionalair-entrainingadmixtureoruseofanair-entrainingadmixtureincombinationwithair-entraininghydrauliccement.1.2ThevaluesstatedinSIunitsaretoberegardedasstandard.Nootherunitsofmeasurementareincludedinthisstandard.1.3Thetextofthisstandardreferencesnotesandfootnotes,whichprovideexplanatoryinformation.Thesenotesandfootnotes(excludingthoseintablesandfigures)shallnotbeconsideredasrequirementsofthestandard.
【中国标准分类号】:Q13
【国际标准分类号】:91_100_30
【页数】:3P.;A4
【正文语种】:英语