In May ’22 a paper has been published by Tobias Hertel, van den Bulck, Amy; Blanpain, Bart; Pontikes, Yiannis. This paper “Correlating the amorphous phase structure of vitrified bauxite residue (red mud) to the initial reactivity in binder systems” investigates the reactivity of cementitious systems using different slags made from bauxite residue as the main raw material.
https://www.sciencedirect.com/science/article/abs/pii/S0958946522000063?via%3Dihub