Effects of metakaolin and nano silica on the compressive strength and microstructure of cement mortar. Vietnam Journal of Catalysis and Adsorption, [S. l.], v. 15, n. 3, p. 89–94, 2026. DOI: 10.62239/jca.2026.052. Disponível em: https://jca.edu.vn/index.php/jca/article/view/2026.052.. Acesso em: 13 oct. 2026.