橡胶水泥复合土抗压及抗剪强度特性研究.pdfVIP

试验研究ExperimentalResearch

橡胶水泥复合土抗压及抗剪强度特性研究

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涂祥进王辉周恩全

1.南京市公路事业发展中心江苏南京210014

2.江苏大学土木工程与力学学院江苏镇江212013

摘要：为了探索橡胶水泥复合土的路用可行性，本文研究了不同橡胶掺量下橡胶水泥复合土的抗压及抗剪

强度特性。结果表明：橡胶颗粒的加入对橡胶水泥复合土抗压强度的发展有不利影响，随着橡胶掺量的增

加，复合土的抗压强度逐渐降低，但橡胶颗粒的加入缓解了复合土的脆性破坏特征；橡胶颗粒的加入对橡胶

水泥复合土抗剪强度的发展有积极影响，随着橡胶掺量的增加，复合土的抗剪强度先增大后降低，当橡胶掺

量为10%时，复合土的抗剪强度达到峰值，其粘聚力也达到最大值；当橡胶掺量为5%时，复合土的内摩擦角达

到最大值。

关键词：橡胶水泥复合土；无侧限抗压强度；抗剪强度

ResearchontheCompressiveandShearStrengthCharacteristicsofRubberCement

CompositeSoil

Abstract:Tostudythefeasibilityofroaduseofrubbercementcompositesoil,thispaperconsidersthe

influenceofrubbercontentandstudiesthecompressiveandshearstrengthcharacteristics.Theresults

indicatethattheadditionofrubberparticlesharmsthedevelopmentofcompressivestrengthofrubber

cementcompositesoil.Withtheincreaseofrubbercontent,thecompressivestrengthofthecomposite

soilgraduallydecreases,buttheadditionofrubberparticlesalleviatesthebrittlefailurecharacteristics

ofthecompositesoil;theadditionofrubberhasapositiveimpactonthedevelopmentofshearstrength

ofrubbercementcompositesoil.Withtheincreaseofrubbercontent,theshearstrengthofthecomposite

soilfirstincreasesandthendecreases.Whentherubbercontentis10%,theshearstrengthofthe

compositesoilreachesitspeakanditscohesionreachesitsmaximumvalue;whentherubbercontentis5%,

theinternalfrictionangleofthecompositesoilreachesitsmaximumvalue.

Keywords:Rubbercementcompositesoil;unconfinedcompressivestrength;shearstrength

容易滋生细菌，危害生态环境；此外，废旧轮胎中含有的化

引言