Influence of Metakaolin Replacement on the Early Compressive Strength of Heat-Cured Fly Ash–Based Geopolymer Mortar. Bilad Alrafidain Journal for Engineering Science and Technology, [S. l.], v. 1, n. 1, p. 62–67, 2026. DOI: 10.56990/bajest/2026.ISCES.10. Disponível em: https://bajest.bauc14.edu.iq/index.php/bajest/article/view/191. Acesso em: 19 may. 2026.