废旧橡胶混凝土基本力学性能试验  

Basic Mechanical Performance of Waste Rubber Concrete

作　　者：杨春峰[1,2] 张坤[1] 郑忠一 杨敏[1] 

机构地区：[1]沈阳大学建筑工程学院,辽宁沈阳110044 [2]沈阳大学辽宁省环境岩土工程重点实验室,辽宁沈阳110044

出　　处：《沈阳大学学报（自然科学版）》2015年第3期243-246,共4页Journal of Shenyang University：Natural Science

基　　金：国家科技支撑计划项目(2013BAJ15B03);辽宁省高校创新团队支持计划(LT2012021)

摘　　要：采用三种不同颗粒粒径（5~8目、30~40目、60~80目）和四种不同掺量（体积分数为5%、10%、15%、20%）的废旧轮胎橡胶颗粒等体积取代砂制备了橡胶混凝土,试验研究了橡胶颗粒粒径和掺量对混凝土立方体抗压强度、劈裂抗拉强度和轴心抗压强度等力学性能的影响规律.结果表明：与普通混凝土相比,橡胶混凝土破坏时脆性较小,破坏过程中裂缝多、变形大;随着橡胶颗粒掺量的增加,混凝土各强度指标均降低,尤其掺量大于10%以后,各强度指标下降明显,且所掺橡胶颗粒越细混凝土强度下降越大.The rubber concrete is prepared by using rubber particles volume to replace sand with three different rubber sizes（5to 8mesh,30 to 40 mesh,and 60 to 80 mesh）and four different rubber content（the volumn fraction is 5%,10%,15%,20%）.The influence rules of diameter and mixing amount of rubber particle on the compressive strength,the splitting tensile strength and the axial compressive strength of the concrete cube are studied.The results show that,comparing with ordinary concrete,rubber concrete has lower brittleness with many crack and deformation in the destruction process.The intensity indexes of the concrete decrease with the increase of mixing amount of rubber particles;each strength index decreases more significantly after the mixing amount is greater than 10%;and the finer the mixed rubber particle is,the greater the concrete strength decreases.

关 键 词：废旧橡胶 混凝土 抗压强度 抗拉强度 

分 类 号：TU528[建筑科学—建筑技术科学]