Paper Contents
Abstract
The increasing emphasis on sustainable construction practices has prompted researchers to explore alternatives to conventional natural aggregates in concrete. Among these, demolition wastegenerated from construction and deconstruction activitieshas emerged as a promising substitute for coarse aggregates. This review critically evaluates the existing literature on the use of recycled demolition waste aggregates (RA) in concrete, with a particular focus on mechanical properties, durability aspects, and environmental implications. Various studies have demonstrated the feasibility of replacing natural aggregates with RA to produce structural and non-structural concrete. While early investigations primarily assessed compressive and tensile strengths, recent work has expanded into understanding the long-term performance, including resistance to freeze-thaw cycles, chemical attacks, and pore structure evolution. Notably, factors such as aggregate source, processing methods, mix proportions, and curing conditions significantly influence the resulting concrete properties. However, several research gaps persist, particularly concerning long-term durability, optimization of mix design, and real-world applicability. This paper synthesizes experimental findings, highlights key trends, and identifies areas requiring further research to promote the safe and sustainable use of demolition waste in modern concrete construction.
Copyright
Copyright © 2025 Chandan Kumar Vats. This is an open access article distributed under the Creative Commons Attribution License.
