1VASHNAVI, 2DR. P.ROHIT, 3P. RAKESH, 4S .AJAY 03 08 The increasing demand for sustainable road construction and the rapid accumulation of plastic and rubber waste have become major environmental challenges worldwide Conventional bituminous pavements require large quantities of natural materials and petroleumbased binders resulting in increased construction costs and environmental concerns The utilization of waste plastic and waste rubber as modifiers in bitumen offers an effective solution for improving pavement performance while simultaneously addressing waste disposal problems Plastic and rubber modified bitumen enhances the engineering properties of conventional bitumen by increasing its stability flexibility resistance to deformation and durability under varying traffic and climatic conditions This project presents the Design of Bitumen Modified with PlasticRubber Road by investigating the suitability of waste plastic and crumb rubber as bitumen modifiers for flexible pavement construction The study focuses on evaluating the physical and mechanical properties of modified bitumen using laboratory tests such as penetration test softening point test ductility test viscosity test specific gravity test and Marshall Stability test Different percentages of waste plastic and crumb rubber are blended with conventional bitumen to determine the optimum modifier content that provides maximum pavement performance The experimental results demonstrate that plasticrubber modified bitumen significantly improves Marshall Stability loadbearing capacity rutting resistance fatigue resistance moisture resistance and service life compared with conventional bitumen The modified pavement also exhibits lower maintenance requirements and improved resistance to hightemperature deformation and cracking The proposed methodology provides highway engineers with an economical and environmentally sustainable approach for road construction by converting waste plastic and rubber materials into valuable pavement resources while reducing environmental pollution and improving the durability of flexible pavements Copyright (c) Journal of Science Engineering Technology and Management Science. All rights reserved 2026