Bilingual-PPT-3-Asphalt-Materials-沥青材料

1WelcometoNationalExcellentCourseRoadEng.Materials欢迎修学国家级精品课程——《道路工程材料》ZHANGJiupengSchoolofHighway,Chang’anUniv.MaterialsinRoadEngineeringSchoolofHighway,Chang’anUniversity长安大学公路学院Chapter2BituminousmaterialMaterialsinRoadEngineeringSchoolofHighway,Chang’anUniversity长安大学公路学院Chapter2AsphaltmaterialsPetroleumasphalt2.1TechnicalPropertyofPetroleumAsphalt2.2TechnicalRequirementsofPetroleumAsphalt2.3Polymermodifiedasphalt2.4Otherasphalt2.5MaterialsinRoadEngineeringSchoolofHighway,Chang’anUniversity长安大学公路学院47条北京放射线9条纵向路线18条横向路线IntroductionMaterialsinRoadEngineeringSchoolofHighway,Chang’anUniversity长安大学公路学院Therearetwotopicpavements,andtheasphaltpavementisthemainoneAsphaltpavementisconstructedwithasphaltmixtureAsphaltmixtureAggregate（skeleton）Asphalt（bindingandfilling）=+95%wt5%wt5IntroductionMaterialsinRoadEngineeringSchoolofHighway,Chang’anUniversity长安大学公路学院Bitumenisoneoftheoldestmaterialsusedinconstruction.Introduction3000yearsago,naturalasphaltwasusedinBabylonIn15cen.,naturalasphaltwasusedtoprepareasphaltmacadaminIncaEmpire1832-1838,coaltarpitchinEngland1858-1860,rockasphaltinFranceIn20cen.,asphaltmodifiedasphaltwaswidelyusedinroadeng.,and15Cen.18321858年20Cen.21Cen.Nowadays,wearepursuingbettermaterials.MaterialsinRoadEngineeringSchoolofHighway,Chang’anUniversity长安大学公路学院Bitumenisanorganicmaterials,andincludesasphalts,tarsandpitches.IntroductionBitumensAsphaltsTarsPitchesNaturaldepositsPetroleumasphaltsNativeasphaltsRockasphaltsAsphaltcement(solidorsemi-solid)Cutbackasphalts(liquid)Emulsifiedasphalts(liquid)Blownasphalt(semi-solid)SlowcuringMediumcuringRapidcuringMaterialsinRoadEngineeringSchoolofHighway,Chang’anUniversity长安大学公路学院IntroductionNaturaldepositsincludelakeasphalts,rockasphaltsandseaasphalts.Lakeasphalts布满沥青的地面特立尼达湖沥青TLATrinidaLakeAsphalt克拉玛依黑油泉口MaterialsinRoadEngineeringSchoolofHighway,Chang’anUniversity长安大学公路学院IntroductionNaturaldepositsincludelakeasphalts,rockasphaltsandseaasphalts.RockasphaltsButonrockasphalt(BRA)MaterialsinRoadEngineeringSchoolofHighway,Chang’anUniversity长安大学公路学院PetroleumrefineryResidualmatterAirAir-blownasphaltAsphlatcementDistillatesGasoline,kerosene,Dieseloil,etcRapid-curingCutbackasphaltAsphlatcementGasolineMedium-curingCutbackasphaltAsphlatcementKeroseneSlow-curingCutbackasphaltAsphlatcementDieseloilEmulsifiedasphaltAsphlatcementWaterEmulsifyingagentProcessingStill2.1PetroleumasphaltMaterialsinRoadEngineeringSchoolofHighway,Chang’anUniversity长安大学公路学院2.1Petroleumasphalt1.ComponentsofPetroleumAsphaltMolecularformula：CnH2n+aObScNdThreeorfourchemicalcomponents沥青饱和分正庚烷沉淀沥青质不可溶解软沥青质可溶解胶质正庚烷冲洗甲苯冲洗甲苯/乙醇冲洗芳香分MaterialsinRoadEngineeringSchoolofHighway,Chang’anUniversity长安大学公路学院2.1Petroleumasphalt1.ComponentsofPetroleumAsphalt三组分：油分（Oil）ColorlessliquidSolubleinmostsolventsAllowsasphalttoflow沥青质（Asphaltene）Large,discretesolidinclusions(black)Highviscositycomponent树脂（Resin）Semi-solidorsolidatroomtemperatureFluidwhenheatedBrittlewhencoldMaterialsinRoadEngineeringSchoolofHighway,Chang’anUniversity长安大学公路学院Oil：makeasphaltmobileResin：makeasphaltadhesive,plasticandmobileAsphaltene：determinetemperaturestabilityandviscosityParaffin:reducetheadhesiveability,plasticpropertiesandtemperaturestability,butenhancesoftenpoint,reducepenetrationdegreeandimproveproperties.2.1Petroleumasphalt1.ComponentsofPetroleumAsphaltMaterialsinRoadEngineeringSchoolofHighway,Chang’anUniversity长安大学公路学院2.1Petroleumasphalt1.ComponentsofPetroleumAsphalt四组分：饱和分（Saturated）芳香分（Aromatics）胶质（Resin）沥青质（Asphaltene）（S,Ar,R,As）胶质第一芳香分饱和分第二芳香分沥青质MaterialsinRoadEngineeringSchoolofHighway,Chang’anUniversity长安大学公路学院2.1Petroleumasphalt2ColloidstructureofPetroleumAsphaltsoltypesol-geltypegeltype1-micelle2-particial3-oilcomponent4-externalfilm5-asphaltene6-gelparticial7-combinedoilcomponentFig.3SketchmapofcolloidstructureofpetroleumasphaltAsphaltene10%15%～25%＞30%MaterialsinRoadEngineeringSchoolofHighway,Chang’anUniversity长安大学公路学院2.1Petroleumasphalt2ColloidstructureofPetroleumAsphalt石油沥青的胶体结构Colloidstructuresoltypesol-geltypegeltypeP.I-2-2~+2+2MaterialsinRoadEngineeringSchoolofHighway,Chang’anUniversity长安大学公路学院2.2TechnicalPropertyofPetroleumasphaltmainpropertiesofasphaltphysicalproperties密度体积膨胀系数介电常数Viscosity（黏滞性）黏度稠度lowtemperatureproperty延性脆性temperaturesusceptibility针入度指数（PI）Adhesiveness黏附性Durability耐久性visco-elastic粘弹性MaterialsinRoadEngineeringSchoolofHighway,Chang’anUniversity长安大学公路学院Density、Specificgravity密度、相对密度密度：规定温度下单位体积所具有的质量，单位为kg/m3或g/cm3。用途：计量、计价、沥青混合料组成设计等。2.2TechnicalPropertyofPetroleumasphalt密度瓶相对密度或比重——relativedensityorspecificgravity（ofasphalt）：ratioofthemassofthegivenvolumeofthematerialat25℃orat15℃tothatmassofanequalvolumeofwateratthesametemperature.EquipmentformeasuringdensityMaterialsinRoadEngineeringSchoolofHighway,Chang’anUniversity长安大学公路学院MaterialsinRoadEngineeringSchoolofHighway,Chang’anUniversity长安大学公路学院Consistency粘性①DefinitionAsphalticmaterialmayvaryfromsolidtoliquid,dependingonthetemperature.Consistencyisapropertythatmeasurethedegreeoffluidityorplasticityofasphaltcementatanyparticulartempe