PhD Thesis at the University of Basrah Examines the Structural Behavior of Hollow-Core Slabs
A PhD thesis at the College of Engineering at the University of Basrah examined the structural behavior of lightweight hollow-core slabs reinforced with fibers.
The thesis, presented by student Yahya Mohammed Yahya, aimed to evaluate the structural behavior of ribbed one-way concrete slabs (ribbed slabs) cast from lightweight concrete reinforced with steel fibers under constant and repeated loads. The aim was to achieve highly efficient structural alternatives that reduce the self-weight of structures and improve crack- and vibration-resistant performance.
The thesis included five chapters, during which the student discussed the use of expanded clay aggregate (LECA) as a complete replacement for conventional coarse aggregate, along with different percentages of steel fibers (0%, 0.5%, 1%, 1.5%), and various slab geometric shapes in terms of the number of ribs, their spacing, and the diameters of the main reinforcement. This was compared to conventional concrete (NWC).
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