【英文标准名称】:StandardTestMethodforEffectivenessofPozzolansorGroundBlast-FurnaceSlaginPreventingExcessiveExpansionofConcreteDuetotheAlkali-SilicaReaction
【原文标准名称】:在防止因碱硅石集料反应引起混凝土过度膨胀中火山灰或磨碎高炉渣效能的标准试验方法
【标准号】:ASTMC441-2005
【标准状态】:现行
【国别】:
【发布日期】:2005
【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】:C09.26
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:集料;强碱;混凝土;试验;施工材料
【英文主题词】:alkali-silicareaction;concrete;expansion;flyash;groundblast-furnaceslag;mortar;pozzolan;silicafume
【摘要】:Thistestmethodmaybeusedasapreliminaryorscreeningtesttoevaluatetherelativeeffectivenessofanumberofdifferentmaterialsbeingconsideredforusetopreventexcessiveexpansionduetoalkali-silicareaction.Thistestmethodmayalsobeusedtoevaluatematerialsproposedforuseonaparticularjobtopreventexcessiveexpansionduetoalkali-silicareaction,bytestinginthequantityandincombinationwiththecementorcementstobeusedonthejob.Thistestmethoddoesnotassessthesuitabilityofpozzolansorslagforuseinconcrete.ThesematerialsshouldcomplywithSpecificationC618,SpecificationC989orSpecificationC1240.1.1Thistestmethodcoversthedeterminationoftheeffectivenessofpozzolansorslaginpreventingtheexcessiveexpansioncausedbyreactionbetweenaggregatesandalkaliesinportlandcementmixtures.Theevaluationisbasedontheexpansiondevelopedinmortarbarsbyacombinationofportlandcementandapozzolanorslag,madewithreactiveaggregates(borosilicateglass),duringstorageunderprescribedconditionsoftest.1.2Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【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】: