再生细骨料混凝土碳化性能的试验研究  

The Experimental Study on the Carbonation of the Recycled Fine Aggregate Concrete

作　　者：刘星伟[1] 李秋义[1] 李艳美[2] 杜辉[1] 

机构地区：[1]青岛理工大学土木工程学院,青岛266033 [2]滨州市财政局,滨州256603

出　　处：《青岛理工大学学报》2009年第4期159-161,170,共4页Journal of Qingdao University of Technology

基　　金：国家"十一五"科技支撑计划重点课题资助项目(2006BAJ02B0504)

摘　　要：研究了再生混凝土细骨料种类、取代率和水泥用量对再生混凝土碳化的影响.结果表明:颗粒整形再生细骨料的碳化性能优于简单破碎再生细骨料;随着取代率的提高,颗粒整形再生细骨料混凝土的碳化性能优于同取代率的简单破碎细骨料混凝土,劣于天然细骨料混凝土的碳化性能;随着水泥用量的增加,再生细骨料混凝土的碳化性能有所提高.In this paper,the influences of the kinds of recycled fine aggregate（RFA）, the replacement rate of RFA and the cement content on the anti-carbonation of recycled fine aggregate concrete are analyzed. The results show that the particle shaping recycled fine aggregate concrete is superior in anti-carbonation, comparing with the simple crushed recycled fine aggregate concrete. With the increase of replacement, anti-carbonation of particle shaping recycled fine aggregate concrete is much better than that of the simple crushed recycled fine aggregate concrete, but worse than that of natural fine aggregate concrete. At a certain extent, with the content of cement, the anti-carbonation of the recycled fine aggregate concrete is improved.

关 键 词：再生细骨料 简单破碎 颗粒整形 取代率 碳化 

分 类 号：TU522.09[建筑科学—建筑技术科学]