復合SMA纖維增韌RPC的力學性能及應用研究.pdf

1、南京理工大學碩士學位論文復合SMA纖維增韌RPC的力學性能及應用研究姓名：趙宇奎申請學位級別：碩士專業(yè)：結(jié)構(gòu)工程指導教師：左曉寶20120318Abs仃act碩士論文ABSTRACTWitllt11eincreasingofconcretematerialsperfonIlancerequirementsinconstruction，researchaIld叩plicationoflli曲ped’0mancecorlcretelmsbe

2、enrapidlydevelopedBecauseofitSeXcellentphysicalandmechaIlicmproperties，gooddurabili夠a11dcoordinationwithecologicalelwiro姍ent，reactiVepowderconcrete(RPC)becomeahotissueint11eStlmyofciVilengineeringmaterialsIIlordertoimpro

3、Vethenexuralproperties，fatiguepropeniesa11dimpacttougllIlessofRPC，theinco∞orationof曲eriIlthebaSematerialisaIle虢ctivewayThisp印erpreparedamateriaJsbymixiIlgsteelfiberaIldSMAfiberinRPC，researchedthestaticanddyn鋤icmechamcalp

4、ropenies趾dapplicationoft：hematerialsThemainresearchcontentsandresultS鋤easfoUows：(1)OptimizcdmeiIl艫dientsofRPCWeadoptedthemultielementcompo吼dingtechnologytodisplaythesyne唱iSticefI’ectofseveralindustrialsolidwaSte(such舔sil

5、iceousdustaIldgrouIldedmmaceslag)；sou曲toptimaldescriptionsofsteel肋erandSMA肋ert0eIlllaIlcet11epe而n11ance一研ceratioofcompositeSMA舶ertougheningRPC；optinlizedthesizeofSMA脅erbypenetratingshortcut舶ers(1nⅡnindi鋤eter，l3衄iIllen舒h)

6、int0RPCb2usemaIerialUsingapproachesmentionedaboVe，wecallmalluf砬turecompositeSMAfibertougllemngRPCwimfavorablewo越ngpe墑m觚ce，lli曲pe墑m鋤ce研ceratioa11decology銜endliness(2)Conductedexperimems，iIlcludingaXialcompressiontest，berl

7、dingteSt，f撕guetest姐dimpacttest，toaIlalyze恤properrtiesofproducedcompositeSMA丘bertou業(yè)e血gRPCWbsep踟telyresearchedtlleiIlnuerlceoftwofactors，fibervolurnea11d、vayofadmixture，onmechaIlicalpropenyp舢eterslikecompressions|吮ngtll，b

8、endingstrength，fatiguelifeandimpactto時messTheresultSshowedt11ateachoftllefourpropertieswausiIIlprovedwheniIlcreausingtheVolumeoffibersSpecificallywhenthefibervolumeratieached15％，t11efatiguelifeextended2ordersofmagllitude

9、andtheimpacttougtlIlessroseapproximately53timesCompared塒thS0lelyaddingSteelfiberorSMAfiber’t11emetllodofmixir培、^，itlltheconlpositionofmetwofibersismoreea’ective(3)Designedonel(indofbendingresistarltmemberonbasisofme仃ials

10、mentionedpreViousIyW色corldlJctedresearchedonme丘acturemorphologyaIlds臼汜sss砌nrelationof鉚okindsofecce刪cloadingcoluIl：llls，砌chWeremadebydi舵rent、vaysofadmixture，bearingco盯espondingloadsThefindingindicatedthatcoluIllIlcontai血g