ASTM D560-2003 冷冻和融化压实土、水泥混合物的标准试验方法
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【英文标准名称】:StandardTestMethodsforFreezingandThawingCompactedSoil-CementMixtures
【原文标准名称】:冷冻和融化压实土、水泥混合物的标准试验方法
【标准号】:ASTMD560-2003
【标准状态】:现行
【国别】:
【发布日期】:2003
【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】:D18.15
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:
【英文主题词】:durability;freeze-thaw;soil-cement;soil-cementmixtures;soilstabilization
【摘要】:Thesetestmethodsareusedtodeterminetheresistanceofcompactedsoil-cementspecimenstorepeatedfreezingandthawing.ThesetestmethodsweredevelopedtobeusedinconjunctionwithTestMethodsD559andcriteriagivenintheSoil-CementLaboratoryHandbook7todeterminetheminimumamountofcementrequiredinsoil-cementtoachieveadegreeofhardnessadequatetoresistfieldweathering.Note18212;Thequalityoftheresultproducedbythisstandardisdependentonthecompetenceofthepersonnelperformingitandthesuitabilityoftheequipmentandfacilitiesused.AgenciesthatmeetthecriteriaofPracticeD3740aregenerallyconsideredcapableofcompetentandobjectivetesting/sampling/inspection/etc.UsersofthisstandardarecautionedthatcompliancewithPracticeD3740doesnotinitselfassurereliableresults.Reliableresultsdependonmanyfactors;PracticeD3740providesameansofevaluatingsomeofthosefactors.1.1Thesetestmethodscoverproceduresfordeterminingthesoil-cementlosses,watercontentchanges,andvolumechanges(swellandshrinkage)producedbyrepeatedfreezingandthawingofhardenedsoil-cementspecimens.Thespecimensarecompactedinamold,beforecementhydration,tomaximumdensityatoptimumwatercontentusingthecompactionproceduredescribedinTestMethodsD558.1.2Twotestmethods,dependingonsoilgradation,arecoveredforpreparationofmaterialformoldingspecimensandformoldingspecimensasfollows:SectionsTestMethodA,usingsoilmaterialpassingaNo.4(4.75-mm)sieve.Thismethodshallbeusedwhen100%ofthesoilsamplepassestheNo.4(4.75-mm)sieve7TestMethodB,usingsoilmaterialpassinga3/4-in.(19.0-mm)sieve.ThismethodshallbeusedwhenpartofthesoilsampleisretainedontheNo.4(4.75-mm)sieve.Thistestmethodmaybeusedonlyonthosematerialsthathave30%orlessretainedonthe3/4-in.(19.0mm)sieve8
【原文标准名称】:冷冻和融化压实土、水泥混合物的标准试验方法
【标准号】:ASTMD560-2003
【标准状态】:现行
【国别】:
【发布日期】:2003
【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】:D18.15
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:
【英文主题词】:durability;freeze-thaw;soil-cement;soil-cementmixtures;soilstabilization
【摘要】:Thesetestmethodsareusedtodeterminetheresistanceofcompactedsoil-cementspecimenstorepeatedfreezingandthawing.ThesetestmethodsweredevelopedtobeusedinconjunctionwithTestMethodsD559andcriteriagivenintheSoil-CementLaboratoryHandbook7todeterminetheminimumamountofcementrequiredinsoil-cementtoachieveadegreeofhardnessadequatetoresistfieldweathering.Note18212;Thequalityoftheresultproducedbythisstandardisdependentonthecompetenceofthepersonnelperformingitandthesuitabilityoftheequipmentandfacilitiesused.AgenciesthatmeetthecriteriaofPracticeD3740aregenerallyconsideredcapableofcompetentandobjectivetesting/sampling/inspection/etc.UsersofthisstandardarecautionedthatcompliancewithPracticeD3740doesnotinitselfassurereliableresults.Reliableresultsdependonmanyfactors;PracticeD3740providesameansofevaluatingsomeofthosefactors.1.1Thesetestmethodscoverproceduresfordeterminingthesoil-cementlosses,watercontentchanges,andvolumechanges(swellandshrinkage)producedbyrepeatedfreezingandthawingofhardenedsoil-cementspecimens.Thespecimensarecompactedinamold,beforecementhydration,tomaximumdensityatoptimumwatercontentusingthecompactionproceduredescribedinTestMethodsD558.1.2Twotestmethods,dependingonsoilgradation,arecoveredforpreparationofmaterialformoldingspecimensandformoldingspecimensasfollows:SectionsTestMethodA,usingsoilmaterialpassingaNo.4(4.75-mm)sieve.Thismethodshallbeusedwhen100%ofthesoilsamplepassestheNo.4(4.75-mm)sieve7TestMethodB,usingsoilmaterialpassinga3/4-in.(19.0-mm)sieve.ThismethodshallbeusedwhenpartofthesoilsampleisretainedontheNo.4(4.75-mm)sieve.Thistestmethodmaybeusedonlyonthosematerialsthathave30%orlessretainedonthe3/4-in.(19.0mm)sieve8
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