MIX DESIGN OPTIMIZATION OF HIGH-PERFORMANCE CONCRETE USING LOCAL MATERIALS. Nigerian Journal of Technology, [S. l.], v. 42, n. 2, p. 167–174, 2023. DOI: 10.4314/njt.v42i2.2. Disponível em: https://mail.nijotech.com/index.php/nijotech/article/view/3132. Acesso em: 19 apr. 2026.