Najim abbas , A. (2010) “Experimental Study of Polypropylene Fiber Reinforced Concrete Panels Subjected to Elevated Temperatures”, Journal of Engineering and Sustainable Development, 14(2), pp. 110–126. Available at: https://jeasd.uomustansiriyah.edu.iq/index.php/jeasd/article/view/1460 (Accessed: 5 June 2026).