Mechanism and CO emissions analysis of multi-solid-waste synergistic red mud-based composite cementitious materials under orthogonal tests.

The large stockpile and low utilization rate of red mud (RM) have caused an urgent need for large quantities of RM to be eliminated. In this study, multi-solid-waste synergistic RM-based composite cementitious materials (MS-RMCM) were prepared using RM as the primary material, combined with fly ash, silica fume, and quicklime. Orthogonal tests were conducted to investigate the effects of cementitious components on the mechanical properties.