Procházka, Lukáš, and Jana Boháčová. “Effect of Admixtures on Durability Characteristics of Fly Ash Alkali-Activated Material”. Emerging Science Journal 4, no. 6 (December 1, 2020): 493–502. Accessed June 5, 2025. https://ijournalse.org/index.php/ESJ/article/view/404.