EXPERIMENTALINVESTIGATIONONRECYCLEDAGGREGAT E CONCRETE CONTAINING CRUMB RUBBER

Abstract

This study deals with the experimental investigation on recycled aggregate concrete (RAC) containing crumb rubber as a partial replacement of natural aggregates. Due to rapid urbanization and increasing construction activities, the demand for natural aggregates is increasing, leading to depletion of natural resources. At the same time, disposal of waste materials such as demolished concrete and waste tires has become a major environmental concern. Recycled aggregate and crumb rubber provide an effective solution to these issues by promoting sustainable construction practices. In this study, recycled coarse aggregates obtained from demolished concrete and crumb rubber obtained from waste tires are used in concrete mixtures. Different percentages of crumb rubber are used as partial replacement to fine aggregates, and the mechanical properties of concrete such as compressive strength, split tensile strength, and workability are evaluated. The experimental results are compared with conventional concrete to assess performance. The study aims to evaluate the feasibility of using recycled materials in structural concrete and to promote eco-friendly construction techniques.