This research explores using bauxite residue, or red mud, as a substitute for conventional road materials in Quebec. By conditioning the residue and optimising its incorporation into asphalt, the work aims to reduce reliance on natural aggregates, reuse industrial waste, lower costs, and extend road lifespan from six to ten years.

Industrial combustion residue can strengthen concrete but varies in impurity content. This research uses X-ray imaging and computer vision to identify and quantify impurities in residue particles. The results help cement manufacturers optimize material use, improving quality, reducing costs, and supporting sustainable recycling of industrial waste.