Abstract- Finding alternative materials that may be used to a significant extent is becoming increasingly important in the modern world, which features intense competition and heightened awareness of environmental issues. It is common knowledge that the aluminium manufacturing business in India generates a substantial amount of solid waste, also known as “red mud.” During the process of refining alumina that Bayer developed, red-mud is produced. Because it contains a number of potentially hazardous components, dumping red mud can contaminate the ground and the water, in addition to covering up valuable property. By analysing the cementation behaviour of the material, it is possible to use red mud as a partial substitute for cement in mortar and concrete technologies. These technologies are used in construction activities. It is possible to save money by partially substituting cement with red mud, which is a waste product from the alumina industry and is available free of charge. As a result of the fact that wastes are no longer needed for any industrial processes, one innovative use for them in the field of civil engineering is as a raw material. Taking into account the cementitious behaviour of the red mud, an experiment was carried out with the purpose of partially substituting cement in concrete with red mud for varying percentages (0%, 5%, 10%, 15%, 20%, and 25%). Within the context of the mechanical strength of cement, research is conducted and information is provided on the behaviour of specimens of cement mortar under compression, tension, and flexure. The current article provides a summary of research on the use of red mud as a partial replacement for cement in mortar and concrete, as well as its impact on mechanical and durability elements of the material.