Folagbade, S.O. (2017) “Initial Surface Absorption of Cement Combination Concretes Containing Portland Cement, Fly Ash, Silica Fume and Metakaolin”, International Journal of Sustainable Construction Engineering and Technology, 8(2), pp. 46–56. Available at: https://journal.uthm.edu.my/index.php/IJSCET/article/view/1495 (Accessed: 13 August 2026).