S. A. Bernal, R. Mejía de Gutiérrez, F. Ruiz, H. Quiñones, and J. L. Provis, “High-temperature performance of mortars and concretes based on alkali-activated slag/metakaolin blends”, Mater. constr., vol. 62, no. 308, pp. 471–488, Dec. 2012.