Authors: Gaurav kumar, Jitendra Chauhan, Umesh Rathod
Abstract: The increasing demand for durable, sustainable, and cost-effective roadway infrastructure has led to significant advancements in pavement engineering, particularly in the development of perpetual pavements. This research presents a comprehensive analysis of the Mechanistic–Empirical (M–E) design approach for perpetual pavements incorporating recycled and modified asphalt materials. The M–E design methodology integrates mechanistic analysis of pavement responses (stress, strain, and deflection) with empirical performance models to predict long-term distress such as fatigue cracking, rutting, and thermal cracking. The study critically evaluates the performance of recycled materials including Reclaimed Asphalt Pavement (RAP), Recycled Asphalt Shingles (RAS), and Warm Mix Asphalt (WMA), along with modified binders such as polymer-modified asphalt, crumb rubber-modified bitumen, and nano-modified binders.
