Life-Cycle Approaches to Sustainable Asphalt Mixtures: A Systematic Review of Reclaimed Asphalt, Crumb Rubber, and Warm-Mix Technologies

A systematic and reproducible review was conducted. The protocol followed specific inclusion and exclusion criteria for each database, including TRID, Scopus, ScienceDirect, and Google Scholar. The search was conducted in English, with no geographical limitations, to ensure a global perspective. Boolean operators (AND, OR, etc.) were applied using the following keywords: [(life cycle OR life cycle cost) AND (sustainable asphalt OR recycled asphalt mixtures OR warm mix asphalt OR mix rubber asphalt OR crumb rubber)].