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【英文标准名称】:StandardDescriptiveNonmenclatureofConstituentsofAggregatesforRadiation-ShieldingConcrete
【原文标准名称】:防辐射混凝土集料组分的标准描述命名法
【标准号】:ASTMC638-2009
【标准状态】:现行
【国别】:美国
【发布日期】:2009
【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】:C09.41
【标准类型】:(Terminology)
【标准水平】:()
【中文主题词】:
【英文主题词】:aggregates;boron;concrete;iron;minerals;Aggregate(potentialalkalireactivity);Aggregate(radiation-shieldingconcrete);Boron-containingminerals;Boronfrits;Minerals;Radiation-shieldingconcrete;Terminology--concrete/aggregates/masomry
【摘要】:1.1Thisdescriptivenomenclatureisintendedtogiveaccuratedescriptionsofsomecommonorimportantnaturallyoccurringandsyntheticconstituentsofaggregatesforradiation-shieldingconcrete,that,atthesametime,arenotcommonorimportantconstituentsofconcreteaggregatesingeneraluse.Whilemostofthemineralsandrocksdiscussedbelowmayoccurinsmallquantitiesinaggregatesingeneraluse,theyarenotmajorconstituentsofsuchaggregates.CommonconstituentsofaggregatesingeneralusearedescribedinDescriptiveNomenclatureC294.Radiation-shieldingconcreteoftencontainssuchaggregates,butotherspecialaggregatesareusedinsomecircumstances.1.2Thesyntheticaggregatesincludedareferrophosphorusandboronfrit.1.3Thedescriptionsarenotadequatetopermittheidentificationofmaterials,sinceaccurateidentificationofnaturalandsyntheticaggregateconstituentsinmanycasescanonlybemadebyaqualifiedgeologist,mineralogist,orpetrographer,usingtheapparatusandproceduresofthosesciences.1.4ThevaluesstatedinSIunitsaretoberegardedasstandard.Nootherunitsofmeasurementareincludedinthisstandard.
【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】:英语