EFFECT OF ADDITION OF FLYASH AND GGBS ON CEMENT CONCRETE IN FRESH AND HARDENED STATE . International Journal of Advance Engineering and Research Development (IJAERD), [S. l.], v. 5, n. 2, p. 968–977, 2018. Disponível em: https://ijaerd.org/index.php/IJAERD/article/view/2529. Acesso em: 7 sep. 2025.