ANALISIS PERILAKU BETON RAMAH LINGKUNGAN DENGAN SERBUK LIMBAH KARET BAN BEKAS DALAM PERSPEKTIF FORENSIC ENGINEERING

Abstract

Concrete with waste tire rubber powder is one of the approaches to utilizing rubber waste, which continues to increase in volume over time. This study aims to investigate in detail the effects of using waste tire rubber powder on the mechanical properties of concrete through experimental methods, with a focus on compressive strength and elastic modulus. The comparison results of compressive strength and elastic modulus are then analyzed using a forensic engineering approach to determine their impact on potential structural failures and their influence on the service life of the structure. The results of this study show that the use of rubber powder in the range of 2.5% to 10% as a fine aggregate substitute in concrete mixtures can reduce compressive strength and elastic modulus by approximately 16% to 28% for compressive strength, and 5% to 11% for elastic modulus. In terms of structural service life, the use of rubberized concrete can reduce the service life by approximately 22% to 27%. Rubberized concrete offers great potential in rubber waste utilization and in enhancing the sustainability of construction materials. However, from a forensic engineering perspective, rubberized concrete presents new challenges in understanding, evaluating, and predicting the long-term performance of structures.