Effects of devulcanization temperatures on the properties of ground waste tire modified asphalt

Utilizing waste rubber in asphalt extends the lifespan of pavements and fosters the sustainable reuse of materials. This research explored how devulcanizing ground tire rubber (GTR) affects the qualities of rubber-modified asphalt. The study assessed their impact on flexibility, high-temperature and low-temperature performance, and storage stability by integrating devulcanized rubber at various temperatures and concentrations. Findings indicate that while devulcanization improves the compatibility of rubber with as-phalt, it might diminish its performance at higher temperatures. Modifying the conditions of devulcanization could enhance the performance and stability of the binder.