Investigation of mechanical properties of concrete with natural aggregates partially replaced by recycled coarse aggregate (RCA)

• Published in: Materials today : proceedings Vol. 46; pp. 10315 - 10321
• Main Authors: Shah, Mahesh Chandra, Gupta, Keerat Kumar, Nainwal, Ankit, Negi, Ankit, Kumar, Vivek
• Format: Journal Article
• Language: English
• Published: Elsevier Ltd 2021
• Subjects: Concrete; Natural coarse aggregates; Natural fine aggregates; Recycled coarse aggregates; Recycled fine aggregates; Recycled coarse aggregates; Concrete; Natural fine aggregates; Recycled fine aggregates; Natural coarse aggregates
• ISSN: 2214-7853; 2214-7853
• DOI: 10.1016/j.matpr.2020.12.456

Concrete waste is a solid waste and discarding this waste is a serious problem and requires large space for its disposal and a few percent of it is recycled or reused. This waste can be used instead of natural aggregates in fresh concrete, thus reducing the space for landfill deposits and minimizing environmental pollution. This study shows the change in the strength of concrete when RA is added to it instead of NCA, experiments are done to determine the effect of replacing natural coarse aggregates by recycling coarse aggregates on compressive strength. 7%, 14%, 28% & 35% of the NCA are replaced by RCA. Coarse aggregates are collected from demolished concrete cubes and then aggregates are recycled to prepare fresh concrete of different percentages with recycled aggregates.