Gholizadeh H, Dilmaghani S. The Study of Mechanical Properties of High Strength Concrete Containing Steel and Polypropylene Fibers. Civ Eng J [Internet]. 2018 Jan. 1 [cited 2026 Mar. 13];4(1):221-30. Available from: https://civilejournal.org/index.php/cej/article/view/410