BS EN 654-2011 弹性地板覆盖物.半柔性聚氯乙烯地板砖.规格
时间:2024-05-19 06:57:37 来源: 标准资料网 作者：标准资料网 阅读：9336
【英文标准名称】:Resilientfloorcoverings.Semi-flexiblepolyvinylchloridetiles.Specification
【原文标准名称】:弹性地板覆盖物.半柔性聚氯乙烯地板砖.规格
【标准号】:BSEN654-2011
【标准状态】:现行
【国别】:英国
【发布日期】:2011-05-31
【实施或试行日期】:2011-05-31
【发布单位】:英国标准学会(GB-BSI)
【起草单位】:BSI
【标准类型】:()
【标准水平】:()
【中文主题词】:
【英文主题词】:Bindingagents;Classification;Consumerinformation;Definitions;Elastic;Floorcoverings;Floors;Graphicsymbols;Identification;Linoleum;Marking;Panels;Plastics;Polyvinylchloride;PVC;Rangeofapplication;Resistance;Semiflexibletiles;Specification(approval);Tiles;Utilization
【摘要】:ThisEuropeanStandardspecifiesthecharacteristicsofsemi-flexibletilesbasedonpolyvinylchlorideandmodificationsthereof.Toencouragetheconsumertomakeaninformedchoice,thisEuropeanStandardincludesaclassificationsystem(seeEN685)basedonintensityofuse,whichshowswherethesefloorcoveringsshouldgivesatisfactoryservice.Italsospecifiesrequirementsformarking.
【中国标准分类号】:Q74
【国际标准分类号】:97_150
【页数】:16P.;A4
【正文语种】:英语
【英文标准名称】:StandardTestMethodsforDeterminationofMaximumDryUnitWeightandWaterContentRangeforEffectiveCompactionofGranularSoilsUsingaVibratingHammer
【原文标准名称】:用振动锤测定粒状土壤有效压实的最大干燥单位重量和含水量范围的试验方法
【标准号】:ASTMD7382-2008
【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】:D18.03
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:
【英文主题词】:density;granularsoil;soilcompaction;unitweight;vibratinghammer;watercontent;Granularsoil;Vibratinghammer;Watercontent--soil
【摘要】:Formanycohesionless,free-drainingsoils,themaximumdryunitweightisoneofthekeycomponentsinevaluatingthestateofcompactnessofagivensoilmassthatiseithernaturallyoccurringorisconstructed(fill).Soilplacedasanengineeredfilliscompactedtoadensestatetoobtainsatisfactoryengineeringpropertiessuchasshearstrength,compressibility,permeability,orcombinationsthereof.Also,foundationsoilsareoftencompactedtoimprovetheirengineeringproperties.Laboratorycompactiontestsprovidethebasisfordeterminingthepercentcompactionandwatercontentneededatthetimeofcompactiontoachievetherequiredengineeringproperties,andforcontrollingconstructiontoassurethattherequiredunitweightsandwatercontentsareachieved.Itisgenerallyrecognizedthatpercentcompactionisagoodindicatorofthestateofcompactnessofagivensoilmass.However,theengineeringproperties,suchasstrength,compressibility,andpermeabilityofagivensoil,compactedbyvariousmethodstoagivenstateofcompactnesscanvaryconsiderably.Therefore,considerableengineeringjudgmentmustbeusedinrelatingtheengineeringpropertiesofsoiltothestateofcompactness.Experienceindicatesthattheconstructioncontrolaspectsdiscussedin5.2areextremelydifficulttoimplementoryielderroneousresultswhendealingwithcertainsoils.5.4.1,5.4.2,and5.4.3describetypicalproblemsoils,theproblemsencounteredwhendealingwithsuchsoils,andpossiblesolutionstotheseproblems.Degradation8212;Soilscontainingparticlesthatdegradeduringcompactionareaproblem,especiallywhenmoredegradationoccursduringlaboratorycompactionthanfieldcompaction,asistypical.Degradationtypicallyoccursduringthecompactionofagranular-residualsoiloraggregate.Whendegradationoccurs,themaximumdryunitweightincreasessothatthelaboratorymaximumvalueisnotrepresentativeoffieldconditions.Often,inthesecases,themaximumdryunitweightisimpossibletoachieveinthefield.Onemethodtodesignandcontrolthecompactionofsuchsoilsistouseatestfilltodeterminetherequireddegreeofcompactionandthemethodtoobtainthatcompaction,followedbytheuseofamethodspecificationtocontrolthecompaction.Componentsofamethodspecificationtypicallycontainthetypeandsizeofcompactionequipmenttobeused,theliftthickness,andthenumberofpasses.Note48212;Successinexecutingthecompactioncontrolofanearthworkproject,especiallywhenamethodspecificationisused,ishighlydependentuponthequalityandexperienceofthex201C;contractorx201D;andx201C;inspector.x201D;GapGraded8212;Gap-gradedsoils(soilscontainingmanylargeparticleswithlimitedsmallparticles)areaproblembecausethecompactedsoilwillhavelargervoidsthanusual.Tohandletheselargevoids,standardtestmethods(laboratoryorfield)typicallyhavetobemodifiedusingengineeringjudgment.GravellySoilsPossessingLowAngularityandHighPercentageofFines8212;Gravellysoilspossessinglowangularityandahighpercentageoffinescanleadtopoorresultsfordryunitweightwhenusingthewet/saturatedmethod.However,whenwatercontentsatthetimeofcompactionarenearsaturationwithnofreewater,thedryunitweightachievedmayresultinahighervaluethanthatfromthedrymethod.Ultimately,duringdensification,thematerialmayreachasaturatedstate.Therefore,forthesesoils,awatercontentof1o......【英文标准名称】:UseofSA-249TubesinFiretubeHotWaterHeatingorHotWaterSupplyBoilersSectionIV(ANNULLED)(SUPP12)
【原文标准名称】:火管热水加热或热水供应锅炉的SA-249管的使用.第IV节(已作废)(补充件12)
【标准号】:ASME2231-2001
【标准状态】:现行
【国别】:美国
【发布日期】:2001
【实施或试行日期】:
【发布单位】:美国机械工程师协会(US-ASME)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:
【英文主题词】:
【摘要】:UseofSA-249TubesinFiretubeHotWaterHeatingorHotWaterSupplyBoilersSectionIV(ANNULLED)(SUPP12)
【中国标准分类号】:H48
【国际标准分类号】:
【页数】:
【正文语种】:英语