Performance Evaluation-WMA with Glass and Plastic as aggregate Replacement

Abstract

This paper explores the utilization of waste materials-specifically plastic and glass-in road construction to mitigate environmental impact and enhance sustainability. Highlighting projects from India, Indonesia, and Pakistan, where plastic and glass are replacing traditional aggregates, the study examines their effectiveness in reducing resource consumption and ocean pollution. Additionally, the adoption of Warm Mix Asphalt (WMA) technology is discussed for its environmental benefits, including lower emissions and improved asphalt performance. Performance tests reveal enhanced rut resistance and moisture tolerance in plastic and glass-modified asphalt mixtures compared to Hot Mix Asphalt (HMA). Economic evaluations underscore potential cost savings, supporting the viability of integrating these materials into mainstream road construction practices.