CHARACTERISTIC AND EFFECTS OF A SUPERPLASTICIZER QUANTITY VARIATION IN SOME CONCRETE STRENGTHS OPTIMIZATION. Nigerian Journal of Technology, [S. l.], v. 38, n. 1, p. 81–92, 2018. Disponível em: https://nijotech.com/index.php/nijotech/article/view/1917. Acesso em: 16 apr. 2026.