基本信息
| 标准名称： | 航空电气产品型号命名方法 |
| 中标分类： |
航空、航天 >>
航空器及其附件 >>
航空器及其附件综合 |
| 替代情况： | HB 0-73-1993 HB 0-101-1994 HB 5826-1983 |
| 发布日期： | 1997-09-23 |
| 实施日期： | 1997-10-01 |
| 首发日期： | 1900-01-01 |
| 作废日期： | 1900-01-01 |
| 出版日期： | 1900-01-01 |
| 页数： | 39页 |
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所属分类： 航空 航天 航空器及其附件 航空器及其附件综合
【英文标准名称】:StandardTestMethodforUseoftheDynamicConePenetrometerinShallowPavementApplications
【原文标准名称】:浅层路面上使用的动力圆锥触探仪的标准试验方法
【标准号】:ASTMD6951-2003
【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】:E17.41
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:
【英文主题词】:ADCP;aggregatebasetesting;Californiabearingratio;CBR;DCP;disposablecones;dual-masshammer;dynamicconepenetrometer;insitutesting;pavingmaterialtesting;shearstrength;subgradetesting
【摘要】:Thistestmethodisusedtoassessinsitustrengthofundisturbedsoiland/orcompactedmaterials.Thepenetrationrateofthe8-kgDCPcanbeusedtoestimatein-situCBR(CaliforniaBearingRatio),toidentifystratathickness,shearstrengthofstrata,andothermaterialcharacteristics.4.1.1OthertestmethodsexistforDCPswithdifferenthammerweightsandconetipsizes,whichhavecorrelationsthatareuniquetotheinstrument.The8-kgDCPisheldverticallyandthereforeistypicallyusedinhorizontalconstructionapplications,suchaspavementsandfloorslabs.Thisinstrumentistypicallyusedtoassessmaterialpropertiesdowntoadepthof1000-mm(39-in.)belowthesurface.Thepenetrationdepthcanbeincreasedusingdriverodextensions.However,ifdriverodextensionsareused,careshouldbetakenwhenusingcorrelationstoestimateotherparameterssincethesecorrelationsareonlyappropriateforspecificDCPconfigurations.Themassandinertiaofthedevicewillchangeandskinfrictionalongdriverodextensionswilloccur.The8-kgDCPcanbeusedtoestimatethestrengthcharacteristicsoffine-andcoarse-grainedsoils,granularconstructionmaterialsandweakstabilizedormodifiedmaterials.The8-kgDCPcannotbeusedinhighlystabilizedorcementedmaterialsorforgranularmaterialscontainingalargepercentageofaggregatesgreaterthan50-mm(2-in.).The8-kgDCPcanbeusedtoestimatethestrengthofinsitumaterialsunderlyingaboundorhighlystabilizedlayerbyfirstdrillingorcoringanaccesshole.Note18212;TheDCPmaybeusedtoassessthedensityofafairlyuniformmaterialbyrelatingdensitytopenetrationrateonthesamematerial.Inthiswayundercompactedorx201C;softspotsx201D;canbeidentified,eventhoughtheDCPdoesnotmeasuredensitydirectly.24.5.1AfieldDCPmeasurementresultsinafieldorinsituCBRandwillnotnormallycorrelatewiththelaboratoryorsoakedCBRofthesamematerial.Thetestisthusintendedtoevaluatetheinsitustrengthofamaterialunderexistingfieldconditions.1.1ThistestmethodcoversthemeasurementofthepenetrationrateoftheDynamicConePenetrometerwithan8-kghammer(8-kgDCP)throughundisturbedsoiland/orcompactedmaterials.ThepenetrationratemayberelatedtoinsitustrengthsuchasanestimatedinsituCBR(CaliforniaBearingRatio).Asoildensitymaybeestimated(Note1)ifthesoiltypeandmoisturecontentareknown.TheDCPdescribedinthistestmethodistypicallyusedforpavementapplications.1.2Thetestmethodprovidesforanoptional4.6-kgslidinghammerwhentheuseofthe8-kgslidingmassproducesexcessivepenetrationinsoftgroundconditions.1.3Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:P95
【国际标准分类号】:93_080_01
【页数】:7P.;A4
【正文语种】: