CO2 utilization and sequestration in ready-mix concrete-A review

Suhui Zhang; Qiang Yuan; Jun Ni; Keren Zheng; Yanqun Xu; Jiaoling Zhang

doi:10.1016/j.scitotenv.2023.168025

CO₂ utilization and sequestration in ready-mix concrete-A review

Sci Total Environ. 2024 Jan 10:907:168025. doi: 10.1016/j.scitotenv.2023.168025. Epub 2023 Oct 22.

Authors

Suhui Zhang¹, Qiang Yuan², Jun Ni³, Keren Zheng⁴, Yanqun Xu¹, Jiaoling Zhang¹

Affiliations

¹ School of Civil Engineering, Central South University, Changsha 410075, China; National Engineering Research Center of High-speed Railway Construction Technology, Changsha 410075, China.
² 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: 209176@csu.edu.cn.
³ Jiangsu Shuanglong Group Co., LTD, Nanjing 211112, China.
⁴ School of Civil Engineering, Central South University, Changsha 410075, China.

PMID: 37875204
DOI: 10.1016/j.scitotenv.2023.168025

Abstract

CO₂ utilization and sequestration in concrete have been gaining increased attention in recent years. CO₂ can be injected into ready-mix concrete, which is defined as carbonation ready-mix concrete (CRC) showing a huge CO₂ sequestration potential. CRC technology was comprehensively reviewed in this paper. Firstly, the methods of CRC technology in lab and industrial production were summarized. Then, special attentions were paid to the hydration reaction combined with the carbonation reaction in CRC. The factors affecting the capacity of CO₂ sequestration in CRC were also discussed. Furthermore, the workability, mechanical property, and durability of CRC were evaluated. Finally, based on life cycle assessment (LCA), the CO₂ footprint and carbon index of CRC were analyzed.

Keywords: CO(2) footprint; CO(2) utilization and sequestration; Carbon index; Carbonation reaction; Ready-mix concrete.

Publication types

Review