Shear Behavior of Reinforced Fiber Concrete Beam Using Steel Lathe Scrap Waste and End Hooked Steel Fiber

Abstract:

Shear behavior of reinforced concrete beams using steel lathe scrap waste and end hooked steel fibers as fully or partially web shear reinforcement replacement was studied. Steel lathe scrap waste is generated from industrial steel waste and can be used as recycled fibers offering additional advantages towards environmental pollution reduction. To investigate their effect of reinforced concrete beam under shear behavior, ten reinforced concrete beam specimens with 1200 mm long, 200 mm wide, and 300 mm high were tested under quasi-static loading (two-point loading). The studied parameters in this investigation were types of fibers such as steel lathe waste fiber and traditional hooked steel fiber ratio and the web shear reinforcement ratio are zero% and 50%. Results observed were initial and post-cracking stiffness, maximum capacity load, vertical displacements, modes of failures, and the ductility of the specimens. It was concluded that using of steel lathe scrap waste and hooked steel fibers in concrete are advantageous, they changed the mode of failure of the beam from a brittle to a ductile mode of failure due to the ductility of steel used, whether traditional steel fiber or steel lathe waste fiber. The optimum ratio of the steel lathe scrap waste was found equal 0.5% while the optimum ratio of traditional hooked steel fiber is 1% as fractional volume.

• Periodical: Key Engineering Materials (Volume 945)
• Pages: 129-144
• DOI: https://doi.org/10.4028/p-69d246
• Online since: May 2023
• Authors: Dalia F. Arafa*, Mohamed S. Moawad
• Keywords: Concrete Beam, Crack Resistance, Fiber Concrete, Hooked Steel Fiber, Shear Strength, Steel Lathe Waste

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