Carbon capture

utilization and storage(CCUS) has been identified as an important strategy to reduce CO_2 emissions and mitigate climate change. Mineral carbonation(MC) is emerging as a potential CCUS technology

in which calcium(Ca) or magnesium(Mg) from silicate minerals is bound with CO_2

forming benign and stable calcium/magnesium carbonates. Mineral carbonation not only reduces CO_2 emissions with relatively low overall cost

but also produces high-performance concrete with the use of solid waste. CO_2 curing is a mineral carbonation process where CO_2 is chemically reacted with calcium hydroxide and calcium silica hydrate in recycled concrete aggregate taken from construction and demolition(CD) waste

forming thermodynamically stable carbonate minerals to enhance the properties of the concrete aggregate. In this paper

the progress of using CO_2 mineralization and sequestration technology to improve recycled concrete aggregate is discussed in detail in the perspectives of reaction mechanisms

factors influencing reaction kinetics

and various process routes. Finally

based on a discussion of current research state and existing problems

future prospect of reinforced recycled concrete aggregate produced by CO_2 mineralization are summarized.