Utilizing heat treatment for making low-quality recycled aggregate into enhanced recycled aggregate, recycled cement and their fully recycled concrete

被引：21
|
作者：
Wu, Huixia [1 ,2 ]
Liang, Chaofeng [1 ]
Zhang, Zhiyu [2 ]
Yao, Pengpeng [2 ]
Wang, Changqing [3 ]
Ma, Zhiming [2 ]
机构：
[1] Shaoxing Univ, Sch Civil Engn, Shaoxing 312000, Peoples R China
[2] Yangzhou Univ, Coll Architectural Sci & Engn, Yangzhou 225127, Peoples R China
[3] Shanghai Univ, Dept Civil Engn, Shanghai 200444, Peoples R China
来源：
CONSTRUCTION AND BUILDING MATERIALS | 2023年 / 394卷
关键词：
Low-quality recycled aggregate; Heat treatment modification; Enhanced recycled aggregate; Recycled cement; Fully recycled concrete; MECHANICAL-PROPERTIES; CONSTRUCTION WASTE; WATER-ABSORPTION; DURABILITY; PERFORMANCE; CYCLES; POWDER; REUSE;
D O I：
10.1016/j.conbuildmat.2023.132126
中图分类号：
TU [建筑科学];
学科分类号：
0813 ;
摘要：
Utilizing heat treatment for making low-quality recycled aggregate (LRA) into heat-enhanced recycled aggregate (HRA) and heat-activated recycled cement (HRC) provides a new way for the high-value utilization of LRA. Heat treatment could well remove the old mortar from LRA for preparing HRA, and HRA had much better physical and mechanical properties than LRA. Although incorporating high-content HRA and HRC both negatively impacted the concrete performance, the recycled concrete with HRA and HRC had much better properties than the recycled concrete with LRA and common recycled powder. Optimizing HRA and HRC content could prepare fully recycled concrete with good performance.
引用
收藏
页数：15
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