Within the framework of scientific cooperation between the University of Karbala The Warith Al Anbiya University, Professor Dr Laith Shaker Rashid Al-Qarawi, the Dean of the College of Engineering, and Assistant Professor Dr Alaa Muhammad Jawad Shaaban, the Associate Dean for Administrative and Academic Affairs of the college, and Professor Abdel-Rasoul Thamer -the Department of Civil Engineering /University of Warith Al-Anbiya, participated in publishing Scientific research on behalf of the universities (Mechanical and structural characteristics of pet fiber reinforced concrete plates) In (Smart science) magazine in (Taylor and Francis) with a rate of (3.5 = CS) which is one of the high scientific journals within the international containers SCOPUS. The research included a study of the effect of using recycled PET fibers on the structural properties of reinforced concrete slabs. The results of the research showed a clear impact and a significant improvement over the use of  PET fibers, as the use of recycled PET fibers is one of the aspects of sustainability.https://www.tandfonline.com/doi/abs/10.1080/23080477.2021.1997136?src=&journalCode=tsma2