ZINAB MUBARK ISSA; SOMAYA MASSOUD ABDO. Effect of Adding Sand on Cement Mixtures: An Experimental Investigation of Compressive Strength Using Portland Cement and Nalut Sand. Libyan Journal of Contemporary Academic Studies, Libya, v. 3, n. 2, p. 160–177, 2025. DOI: 10.65417/ljcas.v3i2.252. Disponível em: https://ljcas.ly/index.php/ljcas/article/view/252. Acesso em: 9 nov. 2026.