后裝拔出法檢測(cè)普通水泥砂漿抗壓強(qiáng)度試驗(yàn)研究.pdf

1、湖南大學(xué)碩士學(xué)位論文后裝拔出法檢測(cè)普通水泥砂漿抗壓強(qiáng)度試驗(yàn)研究姓名：何瑤申請(qǐng)學(xué)位級(jí)別：碩士專業(yè)：結(jié)構(gòu)工程指導(dǎo)教師：卜良桃20120527碩士學(xué)位論文AbstractCementmortaristhemostcommonlyusedmaterialinreinforcementofthebrickmasonrywallsathemeandabroadCurrentlythereisnostandardfortestingthecompre

2、ssivestrengthofcementmortarusedforreinforcementindomesticThethicknessofcementmortarusedforreinforcementofthebrickmasonrywallsisnormally25ram～35ramit’StoothintoUSetheordinarydetectionmethodsButthePulloutPostinsertMethodca

3、nmeettherequirementThisthesisreportstheworkassociatedwithusingthePulloutPostinsertMethodforexperimentthecompressivestrengthofcementmortarusedforreinforcementofthebrickmasonrywallsThegradeofcementmortarusedinthisexporimen

4、thasM10，M15，M20，M25andM30Basedonthedataofpulloutforceandcubestrengthofcementmortarthepulloutforce—compressivestrengthcurveISbeensetup，andtheregressionequationparametersalecalculatedbyusingleastsquaremethodThetestresultss

5、howthatagoodlinearrelationshipexistsbetweenthecompressivestrengthofcementmortarandthepullingoutpostinsertforceThen，thequalitiesoflinearregressionequationofcementmortarhavebeenexaminedbyVarianceAnalysisThesignificantdiffe

6、rencesforregressionequationmodelareanalyzedbvttestandFtestInaddition，thecrediblesectionofregressioncoefficientunder95％probabilitieswasgivenThedifferencesabouttheregressmnequationamongcementmortarconcreteandPolyvinylAlcoh

7、olEngineeredcementmortarareaIsoanalyzedAtlast，thedestructivephenomenonofcementmortarinthetestandthefail眥emechanismarediscussed，andtheinfluentialfactorsofPull。outPostinsertMethodfordetectingthecompressivestrengthofcementm

8、ortarareanalyzedForexample，factorssuchastestmaterials，experimentaldevice，processingtechnologyofspecimentestconditionandimproperoperationthatmightaffectthetestresultsbothhavebeenconsideredPulloutPostinsertMethodhasbeenpro

9、vedtohaveveryhi曲precisionanditmuchcheaperandquickerthanothermethodsThismethodalsowasmoreconvenientthanothern艙thodsbecauseitrequiresmuchlightermachinesandtoolsItisshownthatPuIIoutPostinsertMethodcanbeanefficientandeffecti