INVESTIGATING THE COMPRESSIVE AND TENSILE PERFORMANCE OF CONCRETE INCORPORATING RECYCLED AGGREGATES, PLASTIC, AND RUBBER WASTE

Abstract

Concrete production's heavy reliance on natural resources and the pressing issue of plastic and rubber waste disposal necessitates sustainable alternatives. This study uniquely addresses this by investigating the combined and varying proportions of plastic and rubber powder as partial replacements for fine aggregate in M15 concrete, systematically analyzing both compressive and split tensile strengths across ten distinct mix designs. Utilizing eighty cylindrical specimens cured for 7 and 28 days, the research revealed a wide performance range with compressive and tensile strengths. The findings indicate that the specific proportions of waste materials significantly influence concrete's mechanical properties, underscoring the critical need for careful mix design. The research confirms that while some combinations of plastic and rubber can enhance concrete properties, others may reduce strength; nevertheless, these additions offer valuable benefits like improved flexibility, impact resistance, and soundproofing, paving the way for specialized, eco-friendly concrete solutions and a more sustainable construction industry.