偏高岭土基地聚合物水泥土力学性能试验与分析.docx

偏高岭土基地聚合物水泥土力学性能试验与分析
Title:ExperimentalandAnalyticalStudyontheMechanicalPropertiesofPolymer-StabilizedBentonite-BasedCementedSoil
Abstract:
Polymer-stabilizedbentonite-basedcementedsoilisanovelconstructionmaterialthatcombinestheadvantagesofhighplasticityofbentoniteandthestrengthofcement.Inthisstudy,themechanicalpropertiesofpolymer-stabilizedbentonite-basedcementedsoilwereinvestigatedthroughaseriesoflaboratoryexperiments.Theaimwastoanalyzetheeffectsofpolymercontent,curingtime,andconfiningpressureonthestrengthanddeformationcharacteristicsofthematerial.Thefindingsprovideessentialinsightsforthedesignandapplicationofpolymer-stabilizedbentonite-basedcementedsoilingeotechnicalengineeringprojects.
1.Introduction:
1.1Background:
Bentonite,atypeofclaymineral,possesseshighplasticityandiswidelyusedasanadditiveinsoilstabilization.However,itsuffersfromlowstrengthproperties.Cement,ontheotherhand,offersgoodstrengthbutlacksplasticity.Polymer-stabilizedbentonite-basedcementedsoilisanemergingconstructionmaterialthattriestoobtainabalancebetweenplasticityandstrength.
1.2Objective:
Thisstudyaimstoinvestigatethemechanicalpropertiesofpolymer-stabilizedbentonite-basedcementedsoilandanalyzetheeffectsofpolymercontent,curingtime,andconfiningpressureonthematerial'sstrengthanddeformationcharacteristics.
2.ExperimentalProgram:
2.1Materials:
-Bentonite:Thenaturalbentoniteusedinthisstudywascollectedfromtheminingregionandcharacterizedforitsmineralogicalandgeotechnicalproperties.
-Cement:OrdinaryPortlandcementwasusedasthebindingagent.
-Polymer:Aspecificpolymerwasselectedasthestabilizingagent,anditsconcentrationwasvariedduringtheexperiments.
-Water:Distilledwaterwasusedforpreparingthemixtures.
2.2SamplePreparation:
Differentmixturesofbentonite,cement,polymer,andwaterwerepreparedbasedontheexperimentaldesign.Themixtureswerethoroughlymixedtoachievehomogeneityandwerecompactedintocylindricalsamplesusingacompactionmold.
2.3TestingProgram:
Thepreparedsamplesweresubjectedtothefollowingtests:
-UnconfinedCompr