石灰鋼渣土用作公路底基層的試驗研究.pdf

1、南京林業(yè)大學碩士學位論文石灰鋼渣土用作公路底基層的試驗研究姓名：蔡曉飛申請學位級別：碩士專業(yè)：森林工程指導教師：王元綱20070601ResearchOnTheExperimentsAboutLimesteelslagSoilIsUsedforHighwaySubbaseAbstractSteelslagisakindofbyproductduringsteelmaking，andithasmuchapplicationinbuildi

2、ngengineeringareahowevertheapplicationofsteelslagintheroadengineeringisnotverypopularThispapertookthefinesteelslagproducedintheplantof／viaAnShahsteelgroupingforresearchsubjectstudingthepavementperformanceofmixturecombine

3、dwithlimefinesteelslagandsoilasthemixtureisusedforhighwaysubbaseThestepswhichtoascertaintheoptimummixoflimesteelslagsoilinvolve：1)ascertainingtheappropriaterangeofmassratiobetweenfinesteelslagandsoil2)ascertainingtheopti

4、mummassratiobetweenfinesteelslagandsoilthroughorthogonalexperimentdesignmethod3)determiningoptimalmixoflimesteelslagsoilAccordingtotheoptimummixoflimesteelslagsoil，weaddedrespectivelyfinesteelslagandsteelslagmicropowdert

5、othemixturetotestdryingshrinkageandmechanicalcapacities，whichincludeunconfinedcompressivestrength，tensilesplittingstrengthmodulusofcompressiveresilienceBycomparativetrialbetweenthelimesteelslagsoilmixtureandsoillimemixtu

6、resomepointsafeasfofiow：1Usingtheunconfinedcompressives缸engthatdifferentagesascheckindexascertaintheoptimalmassratiobetweenfinesteelslagandsoilistwentytoeighty2Theunconfinedcompressivestrengthtensilesplittingstrengthmodu

7、lusofcompressiveresilienceoflimesteelslagsoilincreasewj也agesgrowthandthevaluesaregreaterthanthatofthesoillimeatsameageEachvalueofthemixturesmechanicialperformancesincreasewiththedecreaseofsteelslaggrain’Ssizeatlatestage3

8、Byanalyzingindexesofdryingshrinkageonthelime—steelslagsoilandsoillime，theindexescontaindryingshrinkagestrainaveragecoefficiantofdryingshrinkage，lossratioofwatertheconclusionisthatthelimesteelslagsoilmixedfinesteelslaghas