海排灰在道路基層材料中的微觀機理研究.pdf

1、沈陽建筑大學碩士學位論文海排灰在道路基層材料中的微觀機理研究姓名：宋曉純申請學位級別：碩士專業(yè)：道路與鐵道工程指導教師：包龍生201001碩士研究生學位論文AbstractIIIAbstractInrecentyearswiththelargescaleconstructionoftheroadscoastaleconomicbelttheamountofflyashasoneofthebasematerialhasbeendeclin

2、ing.Indertosolvetheproblemoftheshtageofflyashinroadconstructionusingflyashflushedbyseawaterfromthecoastinsteadoftheflyashrationallyinroadconstructionbecomesthekeytosolvetheproblemofflyashshtage.Howevermostoftheflyashflus

3、hedbyseawatercontentscertainamountofsaltwhichisconsideredtoerodetheroadbaseharmtheregularuseoftheroad.Therefetousetheflyashflushedbyseawaterrationallytheinfluencemechanismofthesaltcontentofflyashflushedbyseawaterontheroa

4、dmustbestudied.Sofarthereisnotanyreptcrespondingtotheresearchonthemicromechanismofflyashflushedbyseawaterinroadconstruction.Accdingtothelabatytestchemicalanalysistheeticalanalysisthereactionprocessofthechlideionsinflyash

5、flushedbyseawaterisanalyzedthepavementperfmanceofthechlideionsisdiscussedtolaythefoundationofusingtheflyashflushedbyseawaterinroadconstruction.Inthispaperthebestmixproptionisfixedbymacrolabatytest.Whentheflyashflushedbys

6、eawaterisusedascementflyashflushedbyseawaterbasecoursethebestmixproptioniscement:flyashflushedbyseawater:crushedrock=5：10：85whenitisusedascementlimeflyashflushedbyseawater，thebestmixproptioniscement:lime:flyashflushedbys

7、eawater:crushedrock=2：10：43：45.Underthebestmixproptionthebondingamountofthechlideionsisanalyzedbythechemicaltestthenthemicroreactionofthemixtureistestedatdifferentages3d、28d:firstlythechangesoftheproductsatdifferentagesa

8、reanalyzedbyXRaydiffractionsecondlythefigureoftheproductsareobservedbytheScanningElectronMicroscopetestfinallyaccdingtotheexperimentalresultsallabovethebondingmechanismofthechlideionsinthemixtureisanalyzedindepth.Withmic

9、romechanismthemacropavementperfmancedifferencescausedbydifferentsaltcontentareexplainedwhichcompletelyprovedthefactthattheflyashflushedbyseawatercanbeusedinroadconstruction.Thetestresultsshowedthatwhenproperamountofthesa

10、ltaddedtothemixtureanewkindofproduct“Friedel”saltisgeneratedinthetwentyeightages.Thetestresultsalsoshowedthatflyashflushedbyseawatermixturecanbondthechlideionsthereisaoptimumfbondingamount.Thebestamountofchlideionsinflya

11、shflushedbyseawaterfcementflyashflushedbyseawaterbasecourseis1.3%whilethebestamountofchlideionsinflyashflushedbyseawaterfcementlimeflyashflushedbyseawatersubbasecourseis1.5%.Thereactionmechanismoftheflyashflushedbyseawat

12、ermixturetheinfluencecomparisonofthechlidesaltonthevariouspavementperfmancesarediscussed.Areactionmechanismwhichcanexplainftheunconfinedcompressivestrengthfrostresistanceshrinkagetemperatureshrinkagescourresistanceotherp