Asst.Prof.Dr. Sarmad Emad, a lecturer at the materials engineering department at university of technology, has participated in the discussion committee along with Prof.Dr.Mohammed Moslih as a chairman and Asst.Prof.Dr.tawfiq Wasmi as a meber, Asst.Prof.Dr. Yassir Khalel and Lect.Dr.Hamza Mostafa as members and supervisors to award the MSC to the student Zahir Intisar for his thesis "Energy dissipation behaviors and mechanical characteristics of hybrid concrete subjected to dynamic loading" which was held at discussion hall/ Collage of Engineering/ Al-Mustanseriyah University on Thursday,sept.15.2020.

 In this work, a hybrid composite concrete is prepared by adding two types of fibers steel and polypropylene. Firstly, two groups of concrete samples made by incorporating steel and polypropylene fibers individually at different volume fractions (0.25, 0.5, 0.75.1%).

This work designates the effects of hybrid fibers and its modules on concrete dissipation energy under various dynamic loadings (ultrasonic pulse velocity UPV, impact strength) and measured as a hybrid and individual fiber concrete.

New concrete properties results showed that adding fibers to the concrete mixture may cause a significant reduction in the fresh state properties of fiber-reinforced concrete (FRC). Steel fibers reinforced concrete (SFRC) always show better results in all the strength types than polypropylene fiber reinforced concrete (PFRC), while for the hybrid fibers reinforced concrete (HFRC) group shows an intermediate value between the fore mentioned  groups related to conventional concrete. 

The discussion was conducted in a scientific atmosphere and the student was awarded MSC with (fulfilled) after completing all amendments that were put by the discussants.