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考虑环境温度影响的水泥基粉土泡沫轻质土力学性能与配比设计方法 Title:DesignMethodforCement-BasedFoamLightweightSoilMechanicalPropertiesandMixProportionConsideringtheImpactofEnvironmentalTemperature 1.Introduction Theuseofcement-basedfoamlightweightsoilinconstructionandgeotechnicalengineeringapplicationshasgainedsignificantattentionduetoitsexcellentmechanicalpropertiesandenvironmentalbenefits.However,themechanicalpropertiesoffoamlightweightsoilcanbesignificantlyaffectedbyenvironmentaltemperaturevariations.Therefore,thispaperaimstoproposeadesignmethodforthemechanicalpropertiesandmixproportionofcement-basedfoamlightweightsoil,consideringtheinfluenceofenvironmentaltemperature. 2.MechanicalPropertiesofCement-BasedFoamLightweightSoil Cement-basedfoamlightweightsoilisacompositematerialcomposedofcement,foamagent,water,andsoil.Themechanicalpropertiesoffoamlightweightsoilincludecompressivestrength,tensilestrength,andelasticmodulus,whicharecrucialforassessingitssuitabilityforvariousapplications.However,themeasurementsofthesepropertiesareinfluencedbyfactorssuchascuringconditions,mixproportion,andenvironmentaltemperature. 3.EnvironmentalTemperatureEffectsonFoamLightweightSoil Environmentaltemperaturehasasignificantimpactonthemechanicalpropertiesoffoamlightweightsoil.Atlowtemperatures,thehydrationprocessofcementissloweddown,leadingtoreductionsinstrengthandstiffness.Ontheotherhand,hightemperaturescancauseexcessiveheatandresultinacceleratedsettingtime,reducedworkability,andreducedstrengthgain.Therefore,theunderstandingandconsiderationoftheseeffectsareessentialfordesigningmixproportionstomeetthespecificrequirementsunderdifferentenvironmentaltemperatureconditions. 4.DesignMethodforCement-BasedFoamLightweightSoil 4.1DeterminationofMixProportion Themixproportionofcement-basedfoamlightweightsoilneedstobeoptimizedbasedonthetargetmechanicalpropertiesandtheanticipatedenvironmentaltemperaturerange.Experimentalinvestigationsshouldbeconductedtoevaluatethematerialpropertiesoffoamlightweightsoilunderdifferentmixproportionsand