THE SYNERGISTIC EFFECTS OF STEEL FIBERS AND SILICA FUME ON THE MECHANICAL PROPERTIES OF HIGH-STRENGTH CONCRETE. Nigerian Journal of Technology, [S. l.], v. 45, n. 1, p. 23–34, 2026. DOI: 10.4314/njt.2026.5752. Disponível em: https://www.nijotech.com/index.php/nijotech/article/view/5752. Acesso em: 8 may. 2026.