Paper Contents
Abstract
This study investigates the use of recycled concrete aggregates (RCAs) as sustainable alternatives in construction to reduce costs and energy consumption associated with natural aggregates. The focus is on evaluating the characteristics of recycled concrete in fresh and hardened states, particularly compressive strength. Different ratios of recycled aggregate (0%, 25%, 50%, 75%, and 100%) are examined as substitutes for natural coarse aggregates. Results indicate that recycled concrete exhibits slightly lower compressive strength compared to original concrete, with up to 20% reductions in some cases. However, freezethaw resistance remains comparable, possibly due to cement paste sealing pores in porous recycled aggregates. The findings suggest that recycled concrete aggregates are a viable option, despite the slight reduction in strength. Appropriate design considerations and adjustments to mixture proportions can address this concern. By utilizing RCAs, the construction industry can contribute to sustainability by minimizing natural resource consumption and environmental impact. This study provides valuable insights into incorporating recycled concrete aggregates, highlighting their advantages and limitations.
Copyright
Copyright © 2023 ABHISHEK RAWAT. This is an open access article distributed under the Creative Commons Attribution License.
