Exploring the Effects of Rubber Aggregates on Concrete Performance: A Literature Review

Abstract

This literature review investigates the incorporation of rubber aggregates in concrete, focusing on its effects on mechanical properties, durability, and workability. Rubber aggregates, sourced from waste tyres, are increasingly used as partial or full replacements for natural aggregates. The review examines how these aggregates influence compressive and tensile strength, as well as the workability of concrete mixtures. It also addresses durability concerns, including resistance to chloride penetration, acid attacks, and freezethaw cycles. Additionally, the review identifies key factors impacting performance, such as aggregate size, proportion, surface texture, and cement type. The review highlights the reduction in strength often associated with rubber aggregates, while also exploring potential benefits such as reduced weight, enhanced toughness, and increased ductility. Notably, gaps in research related to the flexural performance, deflection, and ductility of reinforced concrete beams containing rubber aggregates are identified, emphasizing the need for further investigation in structural applications. Overall, the review provides a comprehensive overview of current knowledge and suggests areas for future research to optimize the use of rubberized concrete in construction.