ASTM D6648-2008 使用弯曲束流变仪测定沥青粘结剂柔性蠕变硬度的试验方法
时间:2024-04-29 22:24:55 来源: 标准资料网 作者：标准资料网 阅读：8127
【英文标准名称】:StandardTestMethodforDeterminingtheFlexuralCreepStiffnessofAsphaltBinderUsingtheBendingBeamRheometer(BBR)
【原文标准名称】:使用弯曲束流变仪测定沥青粘结剂柔性蠕变硬度的试验方法
【标准号】:ASTMD6648-2008
【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】:D04.44
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:
【英文主题词】:bendingbeamrheometer;flexuralcreepcompliance;flexuralcreepstiffness;Asphaltbinder;BBR(bendingbeamrheometer);Flexuraltesting--concrete;Rheometers
【摘要】:Thetemperaturesforthistestarebaseduponthewintertemperatureexperiencedbythepavementinthegeographicalareaforwhichtheasphaltbinderisintended.Theflexuralcreepstiffnessorflexuralcreepcompliance,determinedfromthistest,describesthelow-temperaturestress-strain-timeresponseofasphaltbinderatthetesttemperaturewithintherangeoflinearviscoelasticresponse.Thelow-temperaturethermalcrackingperformanceofasphaltpavementsisrelatedtothecreepstiffnessandthem-valueoftheasphaltbindercontainedinthemix.Thecreepstiffnessandthem-valueareusedasperformance-basedspecificationcriteriaforasphaltbindersinaccordancewithSpecificationD6373.1.1Thistestmethodcoversthedeterminationoftheflexural-creepstiffnessorcomplianceandm-valueofasphaltbindersbymeansofabendingbeamrheometer.Itisapplicabletomaterialhavingflexural-creepstiffnessvaluesintherangeof20MPato1GPa(creepcompliancevaluesintherangeof50nPax2013;1to1nPax2013;1)andcanbeusedwithunagedmaterialorwithmaterialsagedusingagingproceduressuchasTestMethodD2872orPracticeD6521.Thetestapparatusmaybeoperatedwithinthetemperaturerangefromx2013;36x00B0;Cto0x00B0;C.1.2Testresultsarenotvalidfortestspecimensthatdeflectmorethan4mmorlessthan0.08mmwhentestedinaccordancewiththistestmethod.1.3Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:Q27
【国际标准分类号】:93_080_20
【页数】:14P.;A4
【正文语种】:英语
【英文标准名称】:VDESpecificationsforappliancesfortestingtheprotectingdevicesinpowerinstallations;part2:earthleakagemonitoringappliancessupervisingpowerinstallationsbysuperimpositionofd.c.voltage
【原文标准名称】:电工设备保护措施检验用仪表的VDE规范.使用叠加的直流电压监视交流电压网路的绝缘监视仪
【标准号】:DINVDE0413T.2-1973
【标准状态】:作废
【国别】:
【发布日期】:
【实施或试行日期】:
【发布单位】:德国标准化学会(DE-DIN)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:
【英文主题词】:
【摘要】:
【中国标准分类号】:
【国际标准分类号】:
【页数】:
【正文语种】:
【英文标准名称】:Plasticspipingsystems-Glass-reinforcedthermosettingplastics(GRP)pipesandfittings-Determinationoftheresistancetochemicalattackfromtheinsideofasectioninadeflectedcondition
【原文标准名称】:塑料管道系统.玻璃增强的热固塑料(GRP)管和配件.偏离规定条件下部件内部耐化学侵蚀性能的测定
【标准号】:BSEN1120-1996
【标准状态】:现行
【国别】:英国
【发布日期】:1996-09-15
【实施或试行日期】:1996-09-15
【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】:化学反应;耐化学性;化合物;定义;定义(术语);测定;效应;延伸;配件;玻璃纤维增强的;玻璃纤维增强塑料;测量;管连接件;管道配件;管道装置;管;管系统;塑料管道;塑料管;塑料;增强的材料;增强塑料;耐力;下水道;应变;试验;热塑性聚合物;热固性聚合物
【英文主题词】:Chemicalreactions;Chemicalresistance;Chemicals;Definition;Definitions;Determination;Effects;Elongation;Fittings;Glass-fibrereinforced;Glass-fibrereinforcedplastics;Measurement;Pipecouplings;Pipefittings;Pipelineinstallations;Pipes;Pipingsystem;Plasticpipelines;Plasticpipes;Plastics;Reinforcedmaterials;Reinforcedplastics;Resistance;Sewers;Strain;Testing;Thermoplasticpolymers;Thermosettingpolymers
【摘要】:Thisstandardspecifiesamethodfordeterminingthechemicalresistancepropertiesofglass-reinforcedthermosettingplastics(GRP)pipesandfittingsinadeflectedconditionfornominalsizesDN100andlarger.InconjunctionwithEN705thisstandardprovidesamethodforevaluatingtheeffectofachemicalenvironmentontheinteriorofapipeorfittingafteraspecifiedperiodoftime.NOTE1.Ithasbeenfoundthattheeffectofchemicalenvironmentscanbeacceleratedusingstraininducedbydeflection,henceitisfrequentlyreferredtoasstraincorrosion.NOTE2.Tostudytheapplicabilityofthemethodtotestingthepipeorfittingwithregardtostructuralfailure(wherestructuralfailurebecomesapparentbyasuddenreductionintheloadappliedofatleast20%oftheinitialload)thenwhere'weepfailure'isreferredtointhisstandardsubstitute'structuralfailure'.Astructuralfailurecanbecausedbyconditionssuchas:-interlaminarseparation;-cracksinorthroughthestructurallayerofthewall;-tensilefailureoftheglassreinforcement;-ifapplicable,separationofathermoplasticslinerfromthestructuralwall.Forsuchstudies,datafrom'structuralfailure'resultswillbeanalysedseparatelyfrom'weepfailure'results.
【中国标准分类号】:G33;P94
【国际标准分类号】:23_040_20;23_040_45
【页数】:14P.;A4
【正文语种】:英语