ABSTRACT Modified bitumen has become a pivotal material in modern road construction due to its superior mechanical properties, enhanced durability, and improved resistance to environmental stresses when compared to conventional bitumen. This research focuses on the experimental and analytical evaluation of bitumen modified with polymers and Crumb Rubber Modified Bitumen (CRMB), aiming to enhance performance for contemporary road infrastructure demands. The study systematically investigates the properties of polymer and CRMB modified bitumen through a series of mechanical tests. Key tests include the softening point and penetration tests to assess temperature susceptibility, and the ductility test to evaluate the flexibility and tensile behavior of the modified binders. The experimental results are critically analyzed to support the development of an optimized mix design suitable for various climatic and traffic conditions. By correlating laboratory findings with practical performance expectations, this study provides insights into the behavior of polymer and CRMB modified bitumen under real‐world conditions. The outcomes will assist engineers and material scientists in designing more durable, sustainable, and environmentally friendly pavement solutions.
Khatri et al. (Sat,) studied this question.