多功能水泥穩(wěn)定碎石基層材料外加劑研發(fā).pdf

1、長(zhǎng)安大學(xué)碩士學(xué)位論文多功能水泥穩(wěn)定碎石基層材料外加劑研發(fā)姓名：張桂霞申請(qǐng)學(xué)位級(jí)別：碩士專業(yè)：道路與鐵道工程指導(dǎo)教師：胡力群20100604AbstractPlentyofcoarseaggregatesconsistingincementst乏Ibilizedmacadamwhichbelongsto行ameworkdensestructureleadstosegregationphenomenonCementstabilizedmac

2、adambasecannotbeingcompactedenoughisresult行omthisphenomenon，andthenseriouspavementdistressesoccurInthistext，thepossibilityofadditiVes(nyashandwaterreducingadmixture)improvingmecompactabilityofcementstabilizedmacad鋤baseis

3、researchedUsingwayofflyashneedtobepaymoreattentiontoFlyashisusedasadditiVes，andisnotusedasaltemativesInthistext，firstly，theaddingorderofaltematiVesisresearched，a11dinordertoachivethebestefIfect，latteradmixingmethodisused

4、inthistextAccordingtocementstabilizedmacadamwhichcontainsdifrerentadmixtureamounts，VibrationhitsolidingexperimentsaredoneAsmaxim啪drydensityreachesthemaxim啪，mixingamountofadditives(flyashandwaterreducingadmixture)whichcan

5、beuniaddedordoubleaddedisdeterminedBasedonmethodsofassessingthecompact2lbilityofmaterials，anewmethodissuggested，vibrationfornlationtimeInthistext，accordingtoalotofexperiments，mainconclusionsareachived：whenwaterreducingag

6、entdosageis10％，Vibrationformationtimeisshorest；whenflyashdosageis30％，vibrationfomlationtimeisshorest；、他ennyashdosageis20％andwaterreducingagentdosageis10％，VibrationformationtimeisshorestMoreshorterofvibrationfo啪ationtime，

7、themoreeasytobecompactedAccordingtomixingamountofadditiveswhichhavebeste虢ctsinimproVingthecompactabilityofcementstabilizedmacadambasebelongingto行ameworkdensestmcture，paVementperfomancesaremeasured，andtheresultsshowedthat

8、thepaVementperformancesofcementstabilizedmacabelongsdamtofameworkdenses仃ucturearealsoimproVedTheconcretemanifestationsare：whenflyashorwaterreducingadmixtureisadded，ornyashandwaterreducingadmixtureareaddedatthesametime，st

9、rength、fatiguelifeandrigidityareimproved，andshrinkagecoemcientandtemperaturecontractioncoemcientdecrease；Whennyashandwaterreducingadmixtureareaddedsimultaneously，theire仃Iectsinimpr0VingthecompactabilityandpaVementperfo咖a

10、ncearemoresignificaIltlyIntheconstllJctionprocessofcementstabilizedmacadamwhichbelongstoframeworkdensestructure，addingadditiVestoimprovecompactabilitycanbeextendedKeywords：frameworkdensestructure，cementstabilizedmacadam，