And the radioactivity is far below

And the radioactivity is far below the standard for road construction cement. Nguyen Hoc Thang et al. [18] used the ASTM C109 / C109M9 model to mix and fill red mud and rice husk ash into a 5cm3 cubic mold, which was then cured at room temperature for 28 days. The compressive strength was 6.8 ~ 15.5 MPa, high heat-resistant material that is heat-resistant at 1000 ℃ for 2 h. Deihimi Nazanin et al [19] successfully prepared materials with a compressive strength of up to 45 MPa using two solid wastes of red mud and waste glass, combined with NaOH, and the utilization rate of red mud reached 60%. Kong Ing et al. [20] acidified the red mud, alkalized the sawdust, and then mixed the treated red mud with the sawdust to obtain a composite material with high compressive strength of 8.3 MPa to 138 MPa. ~ 20.7MPa) Equivalent. Siva Karuna G et al. [21] used red mud as the reinforcement phase of aluminum 2024T351, and the compressive strength of the material was significantly improved after incorporating 3% red mud in the aluminum alloy.