“METAKAOLIN BASED GEOPOLYMER CONCRETE MIX DESIGN SUITABLE FOR REINFORCED CONCRETE USE”, FJS, vol. 3, no. 4, pp. 403–411, Apr. 2023, Accessed: Sep. 11, 2025. [Online]. Available: https://fjs.fudutsinma.edu.ng/index.php/fjs/article/view/1664