A study for the properties of the Portland cement from different sources available in the Iraqi market. Periodicals of Engineering and Natural Sciences, [S. l.], v. 8, n. 1, p. 360–364, 2020. DOI: 10.21533/pen.v8.i1.1053. Disponível em: https://pen.ius.edu.ba/index.php/pen/article/view/1053. Acesso em: 27 jul. 2026.