中国资源综合利用2026，Vol.44Issue(7)：1-3,3.DOI:10.3969/j.issn.1008-9500.2026.07.001
碳化处理对再生骨料物理性能改善的工艺优化研究
Study on Process Optimization of Carbonation Treatment for Improving the Physical Properties of Recycled Concrete Aggregate
摘要
Abstract
Recycled Concrete Aggregate(RCA)has a high water absorption rate and insufficient anti crushing ability due to its adhesion to old mortar,microcracks,and high porosity,which limits its application in medium to high performance concrete.To improve the physical properties of RCA,gas accelerated carbonization tests were conducted,with a focus on studying the process optimization and strengthening effects under the"carbonization-rest"cycle mode.The results showed that carbonization treatment can reduce the crushing value and significantly decrease the water absorption rate.Under the 3-cycle process,the crushing value decreased from 22.50%to 21.30%,and the 24 h water absorption rate decreased from 4.22%to 3.60%.The study has identified the optimal process window for gas circulation carbonization,which can provide reference for efficient strengthening and engineering applications of RCA.关键词
再生骨料(RCA)/气体碳化/循环处理/压碎指标/吸水率/孔隙结构/碳酸钙Key words
Recycled Concrete Aggregate(RCA)/gaseous carbonation/cyclic treatment/crushing value/water absorption/pore structure/calcium carbonate分类
建筑与水利引用本文复制引用
彭飞勇,张腾元,谢毅,张培语,岑海,吴涛..碳化处理对再生骨料物理性能改善的工艺优化研究[J].中国资源综合利用,2026,44(7):1-3,3.基金项目
贵州省教育厅青年人才科技成长项目"'双碳'理念下服务'无废城市'建设的纳米-碳化协同增强再生混凝土关键技术与性能提升机制"(黔教技[2025]141号) （黔教技[2025]141号）
国家级大学生创新训练项目"低碳循环-一种再生混凝土骨料固碳技术研究及降碳分析"(2024109770671). （2024109770671）
