自密实再生骨料混凝土的抗冻性试验研究  

Anti-freeze capability test of self-compacting recycled aggregate concrete

作　　者：李永靖[1] 崔森[1] 张志伟 

机构地区：[1]辽宁工程技术大学土木与交通学院,辽宁阜新123000 [2]辽宁安科安全评价有限公司,辽宁沈阳110015

出　　处：《广西大学学报（自然科学版）》2012年第1期120-123,共4页Journal of Guangxi University（Natural Science Edition）

基　　金：国家自然科学基金资助项目(50678079)

摘　　要：为了研究将废弃混凝土作为再生骨料制备自密实混凝土的抗冻性能是否满足要求,通过制备自密实再生骨料混凝土并进行室内300次冻融循环试验,分析了自密实再生骨料混凝土抗冻性能指标的影响因素。研究结果表明,在常用的水灰比下,自密实再生骨料混凝土的耐久性指数、质量损失率等抗冻性指标均满足施工规范技术要求,说明以废弃混凝土作为再生骨料制备自密实混凝土是可行的,其抗冻性能满足要求。In order to study whether the anti-freeze capability of self-compacting concrete using waste concrete as the recycled aggregate meets the requirements, self-compacting recycled aggregate concrete samples were prepared and the freeze-thaw cycle indoor tests for 300 times were conducted to analyze the factors of the frost resistance index of self-compacting recycled aggregate concrete. The results show that the durability index and mass loss rate of self-compacting recycled aggregate concrete can meet the requirements of technical regulations, demonstrating that using waste concrete as the recycled aggregate to prepare self-compacting concrete is feasible and can meet the requirements of frost resistance.

关 键 词：再生骨料 抗冻性 耐久性指数 质量损失率 

分 类 号：TU528[建筑科学—建筑技术科学]