Robayo-Salazar, R., R. Mejía de Gutiérrez, and F. Puertas. “Alkali-Activated Binary Concrete Based on a Natural Pozzolan: Physical, Mechanical and Microstructural Characterization”. Materiales de Construcción 69, no. 335 (September 30, 2019): e191. Accessed April 27, 2024. https://materconstrucc.revistas.csic.es/index.php/materconstrucc/article/view/2255.