ASTM F2420-2005 用相对湿度探针测量法和绝缘盖测定混凝土地板表面相对湿度的标准试验方法

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【英文标准名称】:StandardTestMethodforDeterminingRelativeHumidityontheSurfaceofConcreteFloorSlabsUsingRelativeHumidityProbeMeasurementandInsulatedHood
【原文标准名称】:用相对湿度探针测量法和绝缘盖测定混凝土地板表面相对湿度的标准试验方法
【标准号】:ASTMF2420-2005
【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】:F06.40
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:相对;混凝土地板;混凝土板;混凝土;盖;湿度;探头;测定;绝缘的;湿度测定;表面;铰接式接头;试验
【英文主题词】:concrete;dewpoint;entrappedairchamber;equilibrium;flooring;floorslabs;insulatedhood;moisture;relativehumidity;temperature;thermalinsulation
【摘要】:Moisturepermeatingfromconcretefloorslabsaffectstheperformanceofflooringsystemssuchasresilient,wood,textilefloorcoveringsandresinouscoatings.Manufacturersofsuchsystemsgenerallyrequirehumidity/moisturetestingbeperformedbeforeinstallationoverconcretefloorslabs.Themeasurementofrelativehumidity(RH)directlyabovetheporoussurfacesofafloorslabisonesuchmethod.Excessivemoistureinoremittingfromfloorslabsafterinstallationcancausefloorcoveringsystemfailuressuchasdelamination,bondingfailure,deteriorationoffinishflooringandcoatings,andmicrobialgrowth.ThesurfaceRHHood(relativehumidity)testmethodisintendedtoquantifytherelativehumidityconditionthatexistsatthesurfaceofafloorslabtowhichafloorcoveringorcoatingshallbeapplied.Resultsindicatemoisturecontentconditionsatthetimeofthetest,asmoisturemovementwithintheslabisdynamic.SeeA1.4forreferencetosomemethodsofdeterminingmoisture/humiditylevelsinaconcreteslab.1.1Thistestmethodcoversthequantitativedeterminationofpercentrelativehumidityabovethesurfaceofconcretefloorslabsforfieldorlaboratorytests.1.2Thevaluesgiveninparenthesesareforinformationonly.Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.SomespecificwarningsaregiveninSection.
【中国标准分类号】:P32
【国际标准分类号】:91_100_30
【页数】:6P.;A4
【正文语种】: