“EFFECT OF SODIUM HYDROXIDE CONCENTRATION AND SODIUM SILICATE TO SODIUM HYDROXIDE RATIO ON PROPERTIES OF CALCINED KAOLIN-WHITE PORTLAND CEMENT GEOPOLYMER” (2018) GEOMATE Journal, 14(46), pp. 121–128. Available at: https://geomatejournal.com/geomate/article/view/2888 (Accessed: 8 May 2026).