摘要
世界各地废旧轮胎的黑色污染给环境保护造成了很大的压力.废旧轮胎颗粒水泥混合土质轻、强度和韧性较高、抗震减震、防渗性能优越,可用于护岸护坡的涂层材料以减小裂缝和变形.对废旧轮胎颗粒水泥混合土开展了三轴试验,主要探讨了混合土的强度特性以及轮胎颗粒含量的影响.试验结果表明,黏土中掺入微量水泥和一定比例的废旧橡胶轮胎颗粒,能够改善混合土的性能,提高混合土抗剪强度.当水泥含量恒定时,轮胎颗粒含量约20%时为临界值,此时黏聚力和强度达到最大.
The black pollution of waste tires around the world has exerted large stress on environment. The mixtures of clay, cement and waste tire granules have so many advantages, such as light quality, high strength and toughness, good seismic resistance and impermeability etc. , which can be used for coating material of bank or slope to reduce crack and deformation. There are some triaxial testes on strength properties of mixture soil and influence of waste tire granules. Test results have shown that the properties of clay mixed with little cement and some waste tire granules can be improved greatly and shear strength increases obviously. The criti- cal value of the tire granules is about 20% with the cement content being constant, when the cohesion and the strength of the mixtures can reach the maximum.
出处
《郑州大学学报（工学版）》
CAS
北大核心
2014年第4期33-35,40,共4页
Journal of Zhengzhou University（Engineering Science）
基金
国家自然科学基金资助项目(51308197)
湖北省自然科学基金项目(2012FFB00606)
湖北工业大学博士基金(BSQD12055)
长江科学院开放研究基金资助项目(CKWV2013222/KY)
关键词
轮胎颗粒
混合土
抗剪强度
waste tire
mixture soil
shear strength
