The increasing demand for sustainable and durable construction materials has intensified interest in alternative aggregates and reinforcement methods. This study investigates the behavioral strength characteristics of rubberized fiber-reinforced high-strength concrete (RFRHSC). The research involves partial replacement of cement with 12% metakaolin and sand with 40% copper slag, accompanied by the inclusion of waste tire rubber strips (WTRS) in varying proportions (1% to 5%) as secondary reinforcement. Comprehensive experiments including compressive strength, split tensile, and flexural strength tests were conducted on concrete specimens. Results indicate that while the compressive strength decreased by 3% to 30% with increased WTRS content, the split tensile and flexural strength improved significantly, by up to 32% and 28% respectively. These findings suggest the potential of RFRHSC for structural applications requiring enhanced ductility, especially in seismic zones.
Iyappan et al. (Thu,) studied this question.