作者:标准资料网 时间:2024-04-30 01:56:40   浏览:8654   来源:标准资料网

【英文标准名称】:StandardSpecificationforLiquidMembrane-FormingCompoundsforCuringConcrete
【原文标准名称】:固化混凝土用液态薄膜成形混合物的标准规范
【标准号】:ASTMC309-2007
【标准状态】:现行
【国别】:
【发布日期】:2007
【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】:C09.22
【标准类型】:(Specification)
【标准水平】:()
【中文主题词】:使用期服务;混合物;混凝土;建筑;施工材料;固化;液态;薄膜材料;混合剂
【英文主题词】:concretecuring;liquidmembrane-formingcompoundsforcuringconcrete
【摘要】:1.1Thisspecificationcoversliquidmembrane-formingcompoundssuitableforapplicationtoconcretesurfacestoreducethelossofwaterduringtheearly-hardeningperiod.White-pigmentedmembrane-formingcompoundsservetheadditionalpurposeofreducingthetemperatureriseinconcreteexposedtoradiationfromthesun.Themembrane-formingcompoundscoveredbythisspecificationaresuitableforuseascuringmediaforfreshconcrete,andmayalsobeusedforfurthercuringofconcreteafterremovalofformsorafterinitialmoistcuring.Note1ThisspecificationaddressesonlythosepropertieslistedinSectionsthrough.Membrane-formingcompoundswithspecialpropertiesincludingbetterwaterretention,minimumsolidscontent,resistancetoultravioletradiation,acidandalkaliresistanceandnon-interferencewithadhesivesaredescribedinSpecificationC1315.Note2Solutionsofsilicatesaltsarechemicallyreactiveinconcreteratherthanmembrane-forming;therefore,theydonotmeettheintentofthisspecification.1.2ThevaluesstatedinSIunitsaretoberegardedasthestandard.Thevaluesgiveninparenthesesareprovidedforinformationalpurposesonly.1.3Thefollowingprecautionarycaveatpertainsonlytothetestmethodsportion,Section,ofthisspecification:Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.1.4Thetextofthisstandardreferencesnotesandfootnoteswhichprovideexplanatorymaterial.Thesenotesandfootnotesshallnotbeconsideredasrequirementsofthestandard.1.5Thisisaperformancespecification.Theallowablecompositionofproductscoveredbythisspecificationislimitedbyvariouslocal,regional,andnationalregulations.Issuesrelatedtoairquality(solventemission),workerexposure,andotherhazardsarenotaddressedhere.Itistheresponsibilityoftheproducersandusersofthesematerialstocomplywithpertinentregulations.Warning-SomeVOCexemptsolventsusedtomeettheregulationsareextremelyflammablewithlowautoignitiontemperaturesandrapidevaporationrates.Consultthemanufacturer''sproductinformationsheetforimportantapplicationandsafetyinformation.
【中国标准分类号】:Q24
【国际标准分类号】:91_100_30
【页数】:3P.;A4
【正文语种】: