Optimizing Asphalt Mix with Plastic Coated Aggregate

Abstract: The Process investigates the potential of using plastic-coated aggregates to enhance the performance of asphalt pavement. With growing concerns over plastic waste pollution and deteriorating road infrastructure, the study aims to develop a sustainable and durable solution by incorporating plastic waste into road construction materials. Specifically, the study focuses on coating aggregates with Polymethyl Methacrylate (PMMA) and modifying bitumen with Styrene Butadiene Rubber (SBR) and Polyphosphoric Acid (PPA). additionally, the study optimizes asphalt performance by modifying bitumen with Styrene Butadiene Rubber (SBR) and Polyphosphoric Acid (PPA). The research methodology involves a systematic approach where aggregates are coated with varying percentages of PMMA (4%, 6%, and 8%) and asphalt binder is enhanced with different concentrations of SBR (3%, 4%, and 5%) and PPA (2%, 3%, and 4%). Several tests, including the Marshall Stability Test, impact test, abrasion test, water absorption test, and softening point test, are conducted to assess the mechanical properties, durability, and resistance to environmental factors of the modified asphalt mix. The methodology includes preparation and testing of plastic-coated aggregates with varying percentages of PMMA, followed by modifying asphalt with different concentrations of SBR and PPA. Key performance tests such as the Marshall Stability Test, impact tests, and water absorption tests were conducted to evaluate the mechanical properties and durability of the modified asphalt mix. Results indicate that plastic-coated aggregates improve road strength, water resistance, and longevity, while bitumen modified with SBR and PPA enhances the asphalt’s flexibility and resistance to rutting.