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An eco-friendly solution for construction and demolition waste: Recycled coarse aggregate with CO2 utilization.
Yuan, Qiang; Zhang, Jiaoling; Zhang, Suhui; Zheng, Keren; Chen, Lou.
Affiliation
  • Yuan Q; School of Civil Engineering, Central South University, Changsha 410075, China; National Engineering Research Center of High-Speed Railway Construction Technology, Changsha 410075, China. Electronic address: yuanqiang@csu.edu.cn.
  • Zhang J; School of Civil Engineering, Central South University, Changsha 410075, China; National Engineering Research Center of High-Speed Railway Construction Technology, Changsha 410075, China. Electronic address: zjling@csu.edu.cn.
  • Zhang S; School of Civil Engineering, Central South University, Changsha 410075, China; National Engineering Research Center of High-Speed Railway Construction Technology, Changsha 410075, China. Electronic address: zsh_0910@csu.edu.cn.
  • Zheng K; School of Civil Engineering, Central South University, Changsha 410075, China; National Engineering Research Center of High-Speed Railway Construction Technology, Changsha 410075, China. Electronic address: zhengkeren@csu.edu.cn.
  • Chen L; School of Civil Engineering, Central South University, Changsha 410075, China; National Engineering Research Center of High-Speed Railway Construction Technology, Changsha 410075, China. Electronic address: chenlou@csu.edu.cn.
Sci Total Environ ; : 175163, 2024 Aug 01.
Article in En | MEDLINE | ID: mdl-39097026
ABSTRACT
Carbonation of recycled coarse aggregate (RCA) is an eco-friendly solution for the recycling of construction and demolition waste. This paper provides a comprehensive understanding of utilizing CO2 in RCA. The carbonation mechanism associated with CO2 treatment of RCA has been systematically summarized. The methods for CO2 treatment of RCA and the calculation of CO2 sequestration were discussed. Meanwhile, the efficiency of physical properties enhancement of carbonized RCA was analyzed. The microstructure, mechanical properties and durability improvement of recycled concrete containing carbonized RCA were reviewed. Additionally, the environmental benefits of carbonized RCA were provided through carbon footprint, carbon accounting and carbon intensity. Furthermore, the future perspectives of RCA with CO2 utilization were prospected.
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Full text: 1 Collection: 01-internacional Database: MEDLINE Language: En Journal: Sci Total Environ Year: 2024 Document type: Article
Fulltext
Add to My VHL
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XML
PubMed Links
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Full text: 1 Collection: 01-internacional Database: MEDLINE Language: En Journal: Sci Total Environ Year: 2024 Document type: Article