废旧橡胶集料混凝土抗冻融性能的试验研究  

Experimental study on frost-resistance property of waste rubber aggregate concrete

作　　者：杨春峰[1,2] 叶文超[1] 杨晓慧 

机构地区：[1]沈阳大学建筑工程学院,辽宁沈阳110044 [2]辽宁省环境岩土工程重点实验室,辽宁沈阳110044 [3]北京中建建筑设计院,北京100073

出　　处：《混凝土》2013年第3期81-83,89,共4页Concrete

基　　金：辽宁省自然科学基金项目(201102153);沈阳市科技局基金项目(1081237-1-00)

摘　　要：采用快冻法冻融循环试验，对废旧橡胶集料混凝土的抗冻融性能进行了试验研究。废旧橡胶按等体积取代砂，取代比例分为5％、10％、15％、20％4种；橡胶粒径分为2～4mm；60～80目、30～40目3种。试验结果表明：废旧橡胶混凝土的抗冻融陛能满足规范设计要求，抗冻等级高于基准混凝土，且随着橡胶颗粒粒径的减小抗冻融性能提高，橡胶集料的最佳取代比例为10％左右。The experimental using quick frozen method to study the frost-resistance property of waste rubber concrete.Sand was replaced by waste rubber at equal volume substitution ratio divided into 5%, 10%, 15% ,20% ,and rubber particle diameter was divided into 2-4 mm;60-80 mesh;30-40 mesh.The test results showed that the frost-resistance property of waste rubber concrete could meet the specification of design requirements, the antifreeze level was higher than the matrix concrete, and the frost-resistance property improve with the reduce of rubber particle size, the best substitution ratio of rubber aggregate is about 10%.

关 键 词：废旧橡胶集料 混凝土 快冻法 冻融循环 

分 类 号：TU528.041[建筑科学—建筑技术科学]