国际橡胶沥青会议

DevelopmentofAsphaltPavementinJiangsuExpresswayQianGuochaoDeputydirector,Ph.D.JiangsuProvincialCommunicationsDepartmentNov.2,2009Contents1、GeneralOverview2、ChallengeinAsphaltPavement3、DevelopmentPavementTechnology4、ApplicationofNewTechnique5、PavementQuality6、ConclusionOntheeasternChinacoastWheretheYangtzeRiveremptiesintotheseaArea:102,600sqkmPopulation:76millions.GDP4800$/personKnownasalandoffishandrice”Jiangsu4JiangsuTransportationInvestmentInrecent5years,206.1billionRMBwasinvestedinhighwayandwaterway5JiangsuHighwaysHighwayGradeLength,kmExpressway3725Grade16490Grade219399Grade315351Grade472900Other16034Total130000JiangsuExpressway010002000300040005000600019921996200020032006200820102015通车里程,km时间江苏省高速公路发展示意图ExpresswayDevelopmentinJiangsuProvinceTimeBuilt3000kminpast15years3725kmtill2008ExpresswayDensity,No.1inChinaJiangsuExpresswaylanesLength,Km41630627108860Total52004Lanes6Lanes8LanesOtherProvinceOpenJiangyinYangzteBridgeRunyangBridgeNanjing2rdBridgeNanjing3BridgeSutongBridge1088m4wordrecordUnderConstructionTaizhouYangzteBridgeNanjing4thBridgeChongqiBridge江苏代表了中国跨江大桥建设的最高水平JiangsuBridgesSutongBridge,1088mRunyangBridge,1490m9HavethemostwaterwaymileageanddensityinChinaInlandWaterway4800km20%ofchinaGoldenWaterwayYangzteRiverJinghangcanalWaterwayNetworkin20202longitudinal4transverseTotal3455kmJiangsuWaterway10JiangsuPortsMilliontonDockBerth252No.1inChina2007freightturnovervolume1.05billiontonNo.1inChinastandardcontainers6.2M4.9timesthan20022010Build5portsof100Mtonstandardcontainers12M11JiangsuRailwayOpen850kmin5yearsMileage:1600kmIn5years1hourcitygroupNanjing,ShanghaiandHangzhouWorldlevelRailwaynetwork12JiangCivilAviationNow7CivilAirport190fightsinternational30Domestic160Passenger10Millions/y.Cargo200000t/y.To2020Passenger100millions/y.Cargo3.6millionstonContents1、GeneralOverview2、ChallengeinAsphaltPavement3、DevelopmentPavementTechnology4、ApplicationofNewTechnique5、PavementQuality6、ConclusionDevelopmentofJiangsuAsphaltPavementThreePhasesofJSAsphaltPavementPhaseI（Beginning）1992~2000，1000kmFollowSpecificationDealingwithpavementprematureDamageUsuallyneedRepairingwithin3yearsPhaseII（Developing）2001~2005，1880kmSMA，Superpave、AC-S……Prolongingservicelife，norapairingwithin5yearsPhaseIII（Improving）2006~2015OGFC、AR-AC、PA、CTBSmooth,Safe,Environment-friendly,Long-lifeNorepairingwithin10yearsChallengein2000Shanghai-NanjingExpressway248Kmopentotrafficin1996Rehabilitationto8lanesin2005HeavyDutyExpresswayPavementPrematureFailure1997~2004pumping,pothole,revealingTypicalMoisturedamageChallengein2000XichengExpressway35Km,opentotrafficin1999Beijing-ShanghaiExpressway261Km,opentotrafficin2000;18000Vehicle/Dayin200470%truckPavementFailureAfter1~2yearsRevealing,pothole,ruttingChallengein2000forJSPavementpavementearlydamageisveryseriousMoisturedamageRuttingTherushhourofconstructionappearedin20011000kilometersbe-buildingineveryyear;300kilometersfinishedineveryyear.Whatshouldwedo?Contents1、GeneralOverview2、ChallengeinAsphaltPavement3、DevelopmentPavementTechnology4、ApplicationofNewTechnique5、PavementQuality6、ConclusionAsphaltTreatedBaseLocalSpecificationoasphaltAggregateEndResultSpecificationMaterialConstructionPerpetualPavementAC-SSMAStructureManagementSuperpaveCompactionSegregationPermeabilityPorousAsphaltPavementResearchStatisticalProcessControlTypicalResearchProjectResearchonProlongingServiceLifeofAsphaltPavementResearchtime:2001~2003Conductedby:ExpresswayConstructionHeadquartersofJiangsuProvince,JiangsuTransportationResearchInstituteSoutheastUniversityContents:ImprovingdurabilityofasphaltpavementbyresearchingconstructiontechnologyEstablishinglocalspecificationofasphaltpavementdesignandconstructionwhichissuitableforJiangsuProvince’sclimateandheavytraffic,includingdesignmethodofasphaltpavement,testmethodofasphaltandasphaltmixture.Objective:Nolarge-areadamagewithin5years3.1OptimizationofPavementStructureAdjustmentofHMAThicknessSurfacecourse:4cm→4-4.5cmBasecourse:7cm→8-10cmBinderCourse:5cm→6cmTotalHMAThickness:16cm→18-20cmUsingDenseMixtureThreelayersalladoptdense-gradationmixturetoimproveresistibilityofwaterdamage.IncreaseratioofthicknesstoNMASTheratiooflayerthicknesstoNominalMaximumAggregateSizeisnotlessthan3times.TypicalJSPavementStructureBefore20004cmAC16B6cmAC25I6cmAC25II22～30cmLFABaseLFtreatedSoil4cmAK16C5cmAC25I7cmAC25II32cmCTBLFTreatedSoil4.5cmAK16C/SMA165cmAC25I7cmAC25I34cmTwoAshes-GravelBaseLFTreatedSoilShanghai-NanjingExp.1996Wuxi-JingjiangExp.1999Beijing-ShanghaiExp.2000TypicalPavementStructureduring2001-2005YearNameofExpresswayHMAThicknessSurfacecourseBinderCourseBasecourseBase2001Lian-XuNing-Jing-YanNing-Su-Xu17cm4cmSBSAK-13A4cmSBSSMA136cmAC-20I6cmSup207cmAC-25I7cmSup25LFACTB2002Fen-GuanNing-Jing-YanLian-Xuy17cm4cmSBSAK-13A4cmSBSSMA136cmSBSAC-20I6cmSup207cmSBSAC-25I7cmSup25CTB2003Jing-Fu,Xu--SuNing-Hang17~18cm4cmSBSAK-13A4cmSBSSMA134cmSBSSup136cmSBSAC-20I6cmSup207～8cmSBSAC-25I7～8cmSup25CT