Treatment of Recycled Coarse Aggregate as Sustainable Construction Material

Abstract

Safe disposal of construction and demolition (C&D) waste is a major challenge globally. This study explores strengthening of recycled coarse aggregate (RCA) by conventional cement slurry and novel biocement treatment. Overall, the research contributes to the understanding insights of C&D waste issues, weakness of RCA and mitigation strategies, efficacy of treatment methods and benchmarking, and finally, possible disposal solutions by complete replacement of natural aggregate with treated RCA to achieve sustainability in the concrete industry.