【英文标准名称】:StandardTestMethodforWater-SolubleChlorideinMortarandConcrete
【原文标准名称】:砂浆和混凝土中水溶氯化物的标准试验方法
【标准号】:ASTMC1218/C1218M-1999(2008)
【标准状态】:现行
【国别】:美国
【发布日期】:1999
【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】:
【英文主题词】:chloride;chloridecontent;concrete;mortar;water-solublechloride;Chlorideanalysis--concrete/aggregate;Concrete;Corrosion--concrete;Hydrauliccementmortar;Mortar;Water-solublechloride
【摘要】:Water-solublechloride,whenpresentinsufficientamount,iscapableofleadingtoinitiationoraccelerationofthecorrosionofmetals,suchassteel,embeddedinorcontactingacementsystemsuchasmortar,grout,orconcrete.Thus,itsdeterminationshallberequiredtoevaluatethepotentialofacementsystemforundergoingsuchreactionsortoinvestigatecementsystemswheresuchreactionhasalreadyoccurred.However,itmustberecognizedthatwater-solublechloridedeterminedatsomeparticulartimeinthelifeofacementsystemiscapableofbeingsubstantiallydifferentthanthatatanothertime;forexample,theserviceenvironmentiscapableofresultinginahigherwater-solublechloridecontentduetochangesinsolubilityoraloweroneduetoleaching.Testconditionsarecapableofaffectingwater-solublechloridedeterminations.Takecautionwhencomparingresultsfromthistestmethodwiththosefromothertestmethods.Sulfidesareknowntointerferewiththedeterminationofchloridecontent.Blast-furnaceslagaggregatesandcementscontainsulfidesulfurinconcentrationsthatarecapableofsuchinterferenceandproduceerroneouslyhightestresults.Treatmentwithhydrogenperoxide,asdiscussedinTestMethodsC114,isusedtoeliminatesuchinterference.Thereareaggregatesthatcontainchloridethatisnotavailableforcorrosion.Suchchloridewillbedetectedbyuseofthistestmethod.1.1Thistestmethodprovidesproceduresforthesamplingandanalysisofhydraulic-cementmortarorconcreteforchloridethatiswatersolubleundertheconditionsoftest.1.2Thetextofthisstandardreferencesnotesandfootnotesthatprovideexplanatoryinformation.Thesenotesandfootnotesshallnotbeconsideredasrequirementsofthisstandard.1.3ThevaluesstatedineitherSIunitsorinch-poundunitsaretoberegardedseparatelyasastandard.Withinthetext,theinch-poundunitsareshowninbrackets.Thevaluesstatedineachsystemarenotexactequivalents;therefore,eachsystemshallbeusedindependentlyoftheother.1.4Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:Q13
【国际标准分类号】:91_100_10
【页数】:3P.;A4
【正文语种】:英语