Design and Development for Polymer Modified Bitumen Smart Composite

This research paper aims to provide a crude oil distillation by product, serves as a crucial binder in flexible pavement construction. To meet modern demands, Polymer Modified Bitumen (PMB) has been developed. This study explores both wet and dry preparation methods, introducing six polymers for bitumen modification. Characterization studies reveal that polymer addition enhances bitumen properties without compromising its fundamental binder functionality. Results show that higher polymer content increases the softening point of modified bitumen, improving resistance against permanent deformation issues. Polymer addition also enhances bitumen's ductility and storage stability, ensuring homogeneity even after storage. Marshall Stability value (MSV) increases with higher polymer percentages, and structural modifications are confirmed by Fourier Transformed Infrared Spectroscopy. Viscosity studies indicate changes influenced by polymer type and content, offering insights into binder performance during laying and mixing. Thermal properties analysis suggests enhanced stability at higher temperatures, with a decomposition temperature exceeding the working temperature. Optical Fluorescence Microscopy images reveal uniform polymer dispersion at lower percentages, transitioning to non-uniform dispersion at higher polymer content, altering bitumen's viscoelastic properties. The study concludes that a 5% polymer modification strikes an optimum balance for flexible pavement construction, resulting in an effective binder.