KAPSARC – Decarbonization Pathways for Asphalt Pavement Mixtures in Saudi Arabia

The main theme of the document is the life cycle assessment (LCA) of asphalt mixtures in Saudi Arabia aimed at decarbonization.

The study examines the environmental impacts of asphalt mixtures produced with and without reclaimed asphalt pavement (RAP) and warm mix asphalt (WMA) technologies to reduce mixing temperatures. Key findings include significant reductions in environmental impacts when using 35% RAP in asphalt mixtures, leading to a decrease in global warming by 17.5%, ozone depletion by 16%, eutrophication by 17.4%, particulates by 12.7%, oxidation by 16.5%, and smog formation by 16.3%. The combination of RAP and WMA technologies results in even more significant reductions.