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【英文标准名称】:StandardTestMethodforWater-ExtractableSulfateinHydratedHydraulicCementMortar
【原文标准名称】:水化硅酸盐水泥灰浆中的硫酸钙的试验方法
【标准号】:ASTMC265-2008
【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】:C01.28
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:
【英文主题词】:hydrauliccement;optimumsulfatecontent;sulfate;sulfatecontent;Calciumsulfate(CaSO4);Cementmortars;Hydrauliccementconcrete;Sulfurtrioxide(SO3);Water-extractablematter/processing
【摘要】:Excesssolublesulfateionsinhardenedcementcanresultinreduceddurability.Thistestmethodisintendedtoshowwhethercalciumsulfatehasbeenusedincementinsuchamounttoleaveexcesssolublesulfateinhardenedmortar.ThetestmethodisusedtoestablishcomplianceinSpecificationC595forthosecementsinwhichoptimizedSO3exceedsthetablelimit.Thistestmethodalsocanprovideusefulinformationonotherhydrauliccements,suchasthosespecifiedinSpecificationsC150andC1157.WhenthistestmethodisusedinconjunctionwithTestMethodC563,usetheappropriateageoftestspecimens(24h,3days,or7days)tocoincidewiththeageofspecimensusedinTestMethodC563.1.1Thistestmethodcoversthemeasurementofwater-extractableSO3inhardenedhydrauliccementmortar.Thismeasurementisassumedtorepresentunreacted,availablesulfateremaininginthemortar.1.1.1Warningx2014;Freshhydrauliccementiousmixturesarecausticandmaycausechemicalburnstoskinandtissueuponprolongedexposure.1.2ThevaluesstatedinSIunitsaretoberegardedasthestandard.Thevaluesgiveninparenthesesareforinformationonly.1.3ValuesinSIunitswereobtainedbymeasurementinSIunitsorbyappropriateconversionusingtheRulesforConversionandRoundinggiveninIEEE/ASTMSI-10Standardofmeasurementsmadeinotherunits.1.4Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:Q11
【国际标准分类号】:
【页数】:3P.;A4
【正文语种】:英语