Advancements in the Use of Bayer Red Mud as a Sustainable Cementitious Material in Concrete: Challenges and Opportunities

Bayer red mud is an industrial waste residue formed in the alumina process produced by the Bayer process in the alumina plant. At present, the main disposal method of red mud is to send it to red mud dam for storage. Due to its high alkali content, it causes serious pollution to the surrounding environment and becomes an ecological problem to be solved urgently. In this paper, the application progress of Bayer red mud in concrete is summarized. This paper focuses on the possibility of red mud as a cementitious material and deeply discusses the influence of red mud on the working performance and mechanical properties of concrete. Finally, the shortcomings in the current research of red mud concrete are pointed out, to provide a reference for the research direction of Bayer red mud in concrete.