海排灰在道路基層材料中的微觀機(jī)理研究.pdf

1、沈陽建筑大學(xué)碩士學(xué)位論文海排灰在道路基層材料中的微觀機(jī)理研究姓名：宋曉純申請(qǐng)學(xué)位級(jí)別：碩士專業(yè)：道路與鐵道工程指導(dǎo)教師：包龍生201001碩士研究生學(xué)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