【英文标准名称】:StandardTestMethodforWater-ExtractableChlorideinAggregate(SoxhletMethod)
【原文标准名称】:集料中抽去水的氯化物的标准试验方法(索格利特法)
【标准号】:ASTMC1524-2002a
【标准状态】:现行
【国别】:
【发布日期】:2002
【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】:C09.69
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:混凝土;氯化物;集料;索格利特(提取器)
【英文主题词】:aggregate;chloridecontent
【摘要】:Water-extractablechloride,whenpresentinsufficientamount,hasapotentialtoinitiateoracceleratecorrosionofmetals,suchassteel,embeddedinorcontactingacementitioussystem,suchasmortar,grout,orconcrete.Thistestmethodisapplicablewhenaggregatescontainahighbackgroundofnaturallyoccurringchloride(seeACI222.1x2013;96).TestMethodC1152/C1152Mdeterminesacid-solublechlorideandTestMethodC1218/C1218Mdetermineswater-solublechloride.BothTestMethodsC1152/C1152MandC1218/C1218Mpulverizethesampletoafinepowderorfinegranularmaterial.TheSoxhletmethodisintendedtousenonpulverizedmaterial.ResultswithsomeaggregateshaveshownthattheSoxhletprocedureextractsanextremelylowamountofchloride,withmostofitremainingintherock,andtherefore,itisnotavailableforcorrosion.TheSoxhletextractionapparatusconsistsofthreesections:theboilingflask,whichcontainsreagentwateratthebeginningofthetest;theextractor,whichcontainsthesampleinsideathimble;and,thecondenser.Theextractorfunctionsbyboilingthewater,whichcondensesanddripsontothesample.Whenthewaterattainsafixedheightabovethesample,theextractorsiphonsthewaterfromthethimblebacktotheboilingflask.Theprocessrepeatsitselfuntilthetestisterminated.(RefertoFig.1.)FIG.1SoxhletExtractionApparatus1.1Thistestmethodprovidesproceduresforsamplingandanalysisofaggregateforwater-extractablechlorideusingaSoxhletextractor.Note18212;Thistestmethodistobeusedwhensignificantlyhighchloridecontenthasbeenfoundinaggregates,concretes,ormortars.1.2ThevaluesstatedinSIunitsaretoberegardedasstandard.1.3Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【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】: