EFFECT OF LAGOON AND FRESH WATERS ON THE COMPRESSIVE AND SPLIT TENSILE STRENGTH OF GRADE 40 CONCRETE. FULafia Journal of Science and Technology , [S. l.], v. 4, n. 2, p. 30–34, 2018. Disponível em: https://lafiascijournals.org.ng/index.php/fjst/article/view/124. Acesso em: 15 jul. 2026.