EXPERIMENTAL INVESTIGATION ON CONCRETE USING FLY ASH AND GBFS AS PARTIAL REPLACEMENT OF CEMENT. International Journal of Engineering Research and Science & Technology, [S. l.], v. 21, n. 4, p. 57–76, 2025. DOI: 10.62643/. Disponível em: https://ijerst.org/index.php/ijerst/article/view/1488. Acesso em: 27 jun. 2026.