ASTM D5821-2001(2006) 粗集料中碎颗粒百分率测定的标准试验方法

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【英文标准名称】:StandardTestMethodforDeterminingthePercentageofFracturedParticlesinCoarseAggregate
【原文标准名称】:粗集料中碎颗粒百分率测定的标准试验方法
【标准号】:ASTMD5821-2001(2006)
【标准状态】:现行
【国别】:
【发布日期】:2001
【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】:D04.51
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:粗集料;集料;含量测定
【英文主题词】:aggregate;crushedaggregate;crushedgravel;crushedparticles;fracturedfaces;fracturedparticles
【摘要】:Somespecificationscontainrequirementsrelatingtopercentageoffracturedparticlesincoarseaggregates.Onepurposeofsuchrequirementsistomaximizeshearstrengthbyincreasinginter-particlefrictionineitherboundorunboundaggregatemixtures.Anotherpurposeistoprovidestabilityforsurfacetreatmentaggregatesandtoprovideincreasedfrictionandtextureforaggregatesusedinpavementsurfacecourses.Thistestmethodprovidesastandardprocedurefordeterminingtheacceptabilityofcoarseaggregatewithrespecttosuchrequirements.Specificationsdifferastothenumberoffracturedfacesrequiredonafracturedparticle,andtheyalsodifferastowhetherpercentagebymassorpercentagebyparticlecountshallbeused.Ifthespecificationdoesnotspecify,usethecriterionofatleastonefracturedfaceandcalculatepercentagebymass.1.1Thistestmethodcoversthedeterminationofthepercentage,bymassorbycount,ofacoarseaggregatesamplethatconsistsoffracturedparticlesmeetingspecifiedrequirements.1.2ThevaluesstatedinSIunitsaretoberegardedasthestandard.Thevaluesinparenthesesareprovidedforinformationonly.Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:Q13
【国际标准分类号】:91_100_30
【页数】:5P.;A4
【正文语种】: