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 2025 Sep. 20];4(1):221-30. Available from: https://civilejournal.org/index.php/cej/article/view/410