降低鋼橋面鋪裝層的使用溫度技術(shù)研究.pdf

1、重慶交通大學(xué)碩士學(xué)位論文降低鋼橋面鋪裝層的使用溫度技術(shù)研究姓名：王良艷申請學(xué)位級別：碩士專業(yè)：材料學(xué)指導(dǎo)教師：韓道均陳仕周20090401ABSTRACTAlargenumberofprojectspracticehasbeenprovedthat，thesteelbridgeforthehotregionitspavementtemperatureisoftenuptomorethan70。C，becauseoftherestrict

2、ionsofmaterialproperties，ofteninraisinganti—ruttingperformanceofasphaltconcretewhilewillreducethecrackresistance，itisdifficulttocounterpoisetherelativebetweenthehightemperaturestabilityandcrackresistancebalanceThisarticl

3、econsideradoptingmeasurestoreducetheusingtemperatureofsteelbridgedeckpavementlayertosomeextent，reducingthepossibilityofthebridgedeckpavementruttingdisease，whichcanfurthertakeintoaccountthebalanceresistancerelationshipofa

4、nti—rutandcrack，andaccordinglyimprovethesteelbridgedeckpavementdurabilityThispaperbasedontheresearchofpavementtechnologyforJiangyinYangtzeRiverBridge，asteelbridgeinheavytrafficmodifiedbymasticasphaltconcrete，lookedforthe

5、methodstolowerthetemperatureofsteelbridgedeckpavementlayerbystudyingthepropertyofthematerials，Thisarticlesetupaheatbalanceequationandthesteelbridgedeckpavementlayerheatconductioninsidethedifferentialequations，bythemeanso

6、fanalysingthehotenvironmentofthesteelbridgedeckpavementlayerandthesignificantfactorsaffectingthetemperatureoftheheatbalanceResultsshowedthatreducingthehotpavementsurfaceabsorptionandthethermalconductivityofmaterialsofthe

7、pavementaswellasimprovingradiativepropertiesCaneffectivelyalleviatethepavementsurfacetemperatureistoohighBasedonthis，thesubjectappliedthreewaystostudythecoolingtechnologyofsteelbridgedeckpavementsuchaspaintingoverhotcoat

8、inginthepavementsurface，spreadinglight—coloredgravelatpavementsurface；carryingoutthedesignofmixturebyusingporousaggregateteplacepartsofordinaryaggregateThroughtheindoorandoutdoorexperimentalstudywiththecoating，lightcolor

9、edstone，andporousaggregateandtheanalysisoftheprinciple，itfoundthatthecoatingappliedtothesurfaceofasphaltconcretehadagoodcoolingeffect，followedislight—coloredstone，andtheporousaggregatealmostnocoolingeffectFinallyitevalua

10、tedtheanti—slidingperformanceofthepavementaftercoatingsurfacecoatingontheasphaltconcretesurface，andselectedasuitableprogramforloweringthetemperaturecombinedwiththeactualsituationintheprojectKEYWORDS：Steeldeckpavementlaye