Department of Civil Engineering awards a PhD on the behavior of T . high performance concrete beams

The Department of Civil Engineering at the University of Technology awarded a doctorate degree in structural engineering to the student (Adel Mahdi Jabbar) for his thesis tagged:

Behavior of Ultra High performance self compacting T-beams Reinforced with Basalt Fibers under Shear Loading 

The study included that high-performance concrete is an advanced generation of concrete because of its compressive strength of more than 150 MPa and tensile strength of 20 MPa, which cannot be neglected in the structural behavior of the beams in addition to its high durability, ductility and hardness.

In this paper, 17 T beams were cast to study the effect of using basalt microfibers using 3 volume ratios (0.5 - 1.0 - 1.5%) on the structural behavior under shear loads and comparing it with the behavior of similar beams that contain steel fibers in the same proportions. The mechanical properties of concrete were also studied.

The results showed that the use of basalt fibers increases the compressive strength by a greater percentage than steel fibers. While steel fibers have increased tensile strength.

The results of the beams test showed that the addition of basalt fibers contributed to raising the resistance of the beams to radial cracking loads more than steel fibers, and the percentage increase in loads reached 160%. And both types contributed to raising the maximum threshold resistance to loads.

The discussion committee consisted of

Prof. Dr. Thamer Khudair Muhammad Al-Azzawi Chairman

valley. Amer Farouk Ezzat and Prof. Dr. Iyad Kazem Saihoud and Prof.]ق Wael Shawky Abdel-Saheb and Prof. Dr. Wael Shawky Asmaa Ali Ahmed, members and Prof. Mohammed Jaafar Hamoudi and a professor. Diaa Hamoudi Mohammed supervisors.