ASTM C807-2008 用维卡特贯入度测定水凝水泥灰浆的凝固时间的标准试验方法

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【英文标准名称】:StandardTestMethodforTimeofSettingofHydraulicCementMortarbyModifiedVicatNeedle
【原文标准名称】:用维卡特贯入度测定水凝水泥灰浆的凝固时间的标准试验方法
【标准号】:ASTMC807-2008
【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】:C01.30
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:
【英文主题词】:hydraulic-cementmortar;timeofsetting;Vicatneedle,expansive;Cementmortars;Hydrauliccementmortar;ModifiedVicatneedle;Settingtime;Vicatneedle
【摘要】:Thepurposeofthistestmethodistoestablishwhetherornotacementcomplieswithaspecificationlimitontimeofsetting.Ithasbeenfoundtobeparticularlyapplicableforthedeterminationofthesettingtimeofexpansivecements(seeSpecificationC845).1.1ThistestmethodcoversthedeterminationofthetimeofsettingofhydrauliccementmortarbymeansofthemodifiedVicatneedle.1.2ThevaluesstatedinSIunitsaretoberegardedasstandard.Nootherunitsofmeasurementareincludedinthisstandard.1.3Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.(Warningx2014;Freshhydrauliccementitiousmixturesarecausticandmaycausechemicalburnstoskinandtissueuponprolongedexposure.Theuseofgloves,protectiveclothing,andeyeprotectionisrecommended.Washcontactareawithcopiousamountsofwateraftercontact.Washeyesforaminimumof15min.Avoidexposureofthebodytoclothingsaturatedwiththeliquidphaseoftheunhardenedmaterial.Removecontaminatedclothingimmediatelyafterexposure.)1.4Thetextofthisstandardreferencesnotesandfootnoteswhichprovideexplanatorymaterial.Thesenotesandfootnotes(excludingthoseintablesandfigures)shallnotbeconsideredasrequirementsofthestandard.
【中国标准分类号】:Q11
【国际标准分类号】:91_100_10
【页数】:3P.;A4
【正文语种】:英语