再生混凝土抗气渗性及抗碳化性能研究  

Study on the Gas Anti-permeability and Carbonation Resistance of Recycled Concrete

作　　者：孙浩[1] 王培铭[1] 孙家瑛[2] 

机构地区：[1]同济大学先进土木工程材料教育部重点实验室,上海200092 [2]上海市市政工程研究院,上海200031

出　　处：《建筑材料学报》2006年第1期86-91,共6页Journal of Building Materials

基　　金：先进水泥基材料上海市教委重点学科建设基金资助项目

摘　　要：以废弃混凝土为再生粗集料,再适当掺加一定量的水泥和矿物掺和料,制成再生混凝土.对再生混凝土的抗气渗性和抗碳化性能进行了研究,试验结果表明:再生混凝土的抗气渗性和抗碳化性能之间具有一定的相关性,但该两者均较普通混凝土差.通过加入矿物掺和料,则再生混凝土的抗气渗性和抗碳化性能均可得到改善.The gas anti permeability and carbonation resistance of recycled concrete, which was prepared by using waste concrete as recycled coarse aggregate （RCA） and some cement and mineral additions as raw materials, were studied. The results indicate that there are some relativity between the gas anti-permeability and carbonation resistance, and both properties of recycled concrete are worse than those of normal concrete. The poor gas anti-permeability and carbonation resistance of recycled concrete can be offset by mineral additions.

关 键 词：再生粗集料 再生混凝土 矿物掺和料 抗气渗性 抗碳化性能 

分 类 号：TU528[建筑科学—建筑技术科学]