Towards sustainable artificial aggregate production using industrial waste and CO₂: A comprehensive review

The depletion of natural resources and the challenge of eliminating industrial wastes are increasingly driving the development of artificial aggregates. Accelerated carbonation curing of artificial aggregates was recognized as a promising and environmentally friendly method for enhancing aggregates performance. This study provided a comprehensive review of the current research on this emerging technology, focusing on such as raw material selection, preparation processes, aggregates characteristics, performance improvement strategies, environmental impacts, and commercialization prospects. Additionally, the current application status of carbonated artificial aggregates (CAAs) in concrete has been assessed based on existing research findings. Finally, the current state of research on CAAs is summarized, and recommendations for future research are provided.