Use of Waste Tyre Rubber Powder and Waste Plastic in Bituminous Road Construction

Abstract: Many roads agencies have been experiencing problem of premature failure of pavements like potholes, roughness, cracks and etc. which leads to poor performance of roads and its life. On the other hand, plastics, rubbers, etc. are increasing day by day. Waste like plastic bottles, polymers, cups, waste tyre’s can be re-used by powdering or blending it with crusher’s and can be coated over aggregate and bitumen by any heating process. In this study we have used polymer and crumbed rubber as a binder with respect to aggregate and bitumen. In bituminous roads, we use materials like aggregate (of various sizes), grit and bitumen. The various tests are conducted during this study on aggregates such as crushing value, impact value, abrasion value, and specific gravity and also on bitumen penetration value, ductility, softening point. The results are discussed in this paper. The escalating environmental challenges posed by increasing volumes of waste plastic and waste rubber necessitate innovative solutions for their sustainable management. This M.Tech mini project focuses on exploring the feasibility and efficacy of incorporating waste plastic and waste rubber into road construction materials, specifically in aggregates and bitumen. The research encompasses a comprehensive investigation into the physical, chemical, and mechanical properties of these waste materials, assessing their compatibility with traditional road construction requirements. The project unfolds through systematic phases, commencing with a thorough literature review to contextualize the current state of research on utilizing waste plastic and waste rubber in road materials. Following this, samples of waste plastic and waste rubber are collected and characterized, ensuring a nuanced understanding of their material properties. Laboratory experiments are then conducted to modify road aggregates and bitumen with varying proportions of these waste materials. The anticipated outcome of this mini project is a holistic understanding of the viability and benefits of incorporating waste plastic and waste rubber in road construction materials. The findings are expected to contribute to sustainable road infrastructure development, providing a foundation for future research and practical implementation in the realm of civil engineering. This research aligns with the broader goal of promoting environmentally conscious practices and mitigating the impact of waste materials on our ecosystems.