摘要
概述了国内外常用的再生骨料强化方法,对碳化强化改善再生骨料性能及其微观机理进行了总结与分析。碳化强化再生骨料性能的机理主要是通过CO2与再生骨料表面附着老砂浆中的Ca(OH)2和C-S-H凝胶反应生成CaCO3和硅胶填充孔隙,使得其内部的微观结构朝着有利于骨料性能提高的方向发展。
The commonly used methods of recycled aggregate strengthening at home and abroad are summarized, and the improvement of properties of recycled aggregate by carbonization strengthening and its microcosmic mechanism are summarized and analyzed. The mechanism of carbonization to enhance the performance of recycled aggregate is mainly through the reaction of CO 2 with Ca(OH) 2 and C-S-H gel on the surface of recycled aggregate to generate CaCO 3 and silica gel to fill the pores, so that the microscopic pores and interface structure are developed in a direction conducive to the improvement of the performance of recycled aggregate.
作者
欧阳楚才
李燕良
沈小俊
Ouyang Chucai;Li Yanliang;Shen Xiaojun(School of Civil Engineering and Architecture, Guangxi University, Nanning 530004, China)
出处
《山西建筑》
2019年第16期88-89,共2页
Shanxi Architecture
基金
广西研究生教育创新计划项目(项目编号:YCSW2018048)
关键词
再生骨料
碳化强化
微观机理
recycled aggregate
reinforced by carbonization
microscopic mechanism
