EXPERIMENTAL STUDY AND ANALYSIS ON THE EFFECT OF M40 CONCRETE ON THE DURABILITY STRENGTH PROPERTIES WITH PARTIAL REPLACEMENT OF SAND WITH COPPER SLAG. Spectrum Journal of Innovation, Reforms and Development, [S. l.], v. 11, p. 144–155, 2023. Disponível em: https://sjird.journalspark.org/index.php/sjird/article/view/527. Acesso em: 31 jan. 2026.