The Effect of Nano Materials and Waste Polymer on the Performance of Bitumen and Asphalt Mixture

The goal of the current investigation was to determine how nanosilica particles affected the performance parameters of asphalt binders treated with polymers. In this investigation, nanosilica particles and polypropylene polymer were added at concentrations ranging from 0% to 4% to regulate 80/100 binder. By weight, polypropylene polymer and nanosilica particles were added to the total bitumen content. To assess the impact of nanosilica particles, asphalt performance tests such as the flexural four point beam fatigue test, indirect tensile strength, indirect tensile stiffness modulus, and draindown tests are carried out. The study's findings demonstrate that adding nanosilica particles to a modified polypropylene polymer binder increases its resistance to fatigue. This suggests that the performance characteristics of binders modified with polymers are significantly improved by nanosilica particles. The outcome also shows that bitumen modifiers made of thermoplastic polymer polypropylene and nanosilica particles enhance the functionality and longevity of asphalt mixes.