PhD Dissertation at the University of Basrah Investigates the Structural Behavior of Fiber-Reinforced Cementitious Mortar Beams
A PhD dissertation at the College of Engineering, University of Basrah, examined the structural behavior of concrete beams reinforced with fiber-permeated cementitious mortar.
The dissertation, submitted by student Mohammad Farhan Ajimi, aimed to identify the factors affecting the mechanical properties of this type of concrete. The study investigated the impact of five key factors on both the fresh and hardened properties of the concrete: the method of mixing raw materials, the sand-to-cement ratio, the replacement ratio of cement with mineral additives, the casting technique, and the shape and properties of the fibers used.
The dissertation comprised five chapters in which the student analyzed the optimal methods for mixing raw materials and casting fiber-permeated cementitious mortar. The study demonstrated that the shape and properties of the fibers significantly influence the concrete’s characteristics. Among the fibers examined, the double-knotted fiber measuring 30 mm in length and 0.5 mm in diameter proved to be the most effective.
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