Abstract
This research investigates the utilization of asphalt mix with plastic waste-modified bitumen road surfacing applications, addressing both road infrastructure defects and environmental concerns over plastic waste.
By conducting laboratory evaluations on asphalt mix with plastic waste-modified bitumen and conventional asphalt mixes, the study focuses on two key performance tests: permanent deformation resistance, assessed through the Hamburg Wheel Tracking Test (HWTT), and moisture susceptibility, evaluated through the Modified Lottman Test. The findings highlight the feasibility of using plastic waste as a modifier in bitumen, showing enhanced road durability, reduced surface failure, and improved environmental sustainability.
Case studies from South Africa, India, and the United Kingdom further contextualize these findings. While the results indicate significant performance benefits, further research is recommended to optimize plastic content and assess long-term performance under varying traffic and climate conditions. This study advocates for incorporating plastic waste in asphalt as a step toward sustainable infrastructure and effective waste management