STUDY ON SELF-HEALING ASPHALT PAVEMENT WITH EMPHASIS ON REJUVENATION METHOD

Abstract

Asphalt is a widely used material to pave roads, parking lots, and other infrastructure that requires a smooth and level surface. However, it is susceptible to cracking due to prolonged exposure to sunlight and water infiltration. Once cracks form, they are exacerbated by the continuous stress of vehicular traffic, which can eventually lead to potholes and other surface defects, thereby disrupting smooth traffic flow. In recent decades, researchers have identified innovative self-healing methods for asphalt and proposed various strategies to enhance its self-repairing capabilities and extend its service life. This study focuses on three primary self-healing techniques for asphalt pavement design: nanoparticles, induction heating, and rejuvenation. Specifically, the study examines the effects of rejuvenating agents by incorporating sunflower oil microcapsules into stone mastic asphalt. The findings indicate that these microcapsules effectively heal cracks and improve the fatigue strength of asphalt pavements. Self-healing methods represent advanced approaches that leverage the inherent properties of asphalt to mitigate cracking and prolong the lifespan of pavement structures.