【英文标准名称】:StandardTestMethodforWaterContentandDensityofSoilinPlacebyTimeDomainReflectometry(TDR)
【原文标准名称】:时间域反射测量法现场测定土壤含水量和密度的标准试验方法
【标准号】:ASTMD6780-2005
【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】:D18.08
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:TDR;时间域反射测量法;土壤;密度;区域;含水量
【英文主题词】:compactiontest;constructioncontrol;density;dielectricconstant;electricalpermittivity;electromagneticwaves;fieldcontrol;fieldtests;inspection;moisturecontent;qualitycontrol;soilcompaction;soildensity;timedomainreflect
【摘要】:1.1Thistestmethodmaybeusedtodeterminethewatercontentofsoilsandthein-placedensityofsoilsusingaTDRapparatus.1.2Thistestmethodappliestosoilsthathave30%orlessbyweightoftheirparticlesretainedonthe19.0-mm(3/4-in.)sieve.1.3Thistestmethodissuitableforuseasameansofacceptanceforcompactedfillorembankments.1.4Thistestmethodmaynotbesuitablefororganicandhighlyplasticsoils.1.5AllobservedandcalculatedvaluesshallconformtotheguidelinesforsignificantdigitsandroundingestablishedinPracticeD6026.1.5.1Themethodusedtospecifyhowdataarecollected,calculated,orrecordedinthisstandardisnotdirectlyrelatedtotheaccuracytowhichthedatacanbeappliedindesignorotheruses,orboth.Howoneappliestheresultsobtainedusingthisstandardisbeyonditsscope.1.6Twoalternativeproceduresareprovided.1.6.1ProcedureAinvolvestwotestsinthefield,anin-placetestandatestinamoldcontainingmaterialexcavatedfromthein-placetestlocation.Theapparentdielectricconstantisdeterminedinbothtests.1.6.2ProcedureBinvolvesonlyanin-placetestbyincorporatingabulkelectricalconductivityinadditiontotheapparentdielectricconstant.1.7ThevaluesstatedineitherSIunitsorinch-poundunitsaretoberegardedseparatelyasstandard.Thevaluesstatedineachsystemmaynotbeexactequivalents;therefore,eachsystemshallbeusedindependentlyoftheother.Combiningvaluesfromthetwosystemsmayresultinnon-conformancewiththestandard.ForadditionalinformationconsultASTMSI101,8Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:B11
【国际标准分类号】:13_080_20
【页数】:13P.;A4
【正文语种】: