Study on the Use of Waste Polyethylene in Asphalt Pavements

Abstract

The growing accumulation of plastic waste, particularly polyethylene, poses significant environmental challenges. This study investigates the feasibility of incorporating waste polyethylene into asphalt mixtures as a sustainable solution for both waste management and pavement improvement. Laboratory experiments were conducted to evaluate the performance characteristics of asphalt modified with varying proportions of shredded waste polyethylene. Key performance indicators such as Marshall Stability, flow value, rutting resistance, and moisture susceptibility were analyzed. The results indicate that the addition of polyethylene enhances the mechanical properties of the asphalt mix, including increased stiffness and improved resistance to deformation. Moreover, the use of plastic-modified asphalt contributes to reduced environmental impact and promotes the circular economy in road construction. This research supports the potential of waste polyethylene as a viable additive in asphalt pavements, offering economic and ecological benefits.