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Fiber Reinforced Polymer Laminates for Strengthening of RC Slabs against Punching Shear: A Review

College of Engineering, Abu Dhabi University, Abu Dhabi 59911, UAE
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Polymers 2020, 12(3), 685; https://doi.org/10.3390/polym12030685
Received: 27 February 2020 / Revised: 14 March 2020 / Accepted: 16 March 2020 / Published: 19 March 2020
(This article belongs to the Special Issue Reinforced Polymer Composites)
Reinforced concrete flat slabs or flat plates continue to be among the most popular floor systems due to speed of construction and inherent flexibility it offers in relation to locations of partitions. However, flat slab/plate floor systems that are deficient in two-way shear strength are susceptible to brittle failure at a slab–column junction that may propagate and lead to progressive collapse of a larger segment of the structural system. Deficiency in two-way shear strength may be due to design/construction errors, material under-strength, or overload. Fiber reinforced polymer (FRP) composite laminates in the form of sheets and/or strips are used in structurally deficient flat slab systems to enhance the two-way shear capacity, flexural strength, stiffness, and ductility. Glass FRP (GFRP) has been used successfully but carbon FRP (CFRP) sheets/strips/laminates are more commonly used as a practical alternative to other expensive and/or challenging methods such column enlargement. This article reviews the literature on the methodology and effectiveness of utilizing FRP sheets/strips and laminates at the column/slab intersection to enhance punching shear strength of flat slabs. View Full-Text
Keywords: flat slab; two-way shear; carbon fiber reinforced polymers; glass fiber reinforced polymers flat slab; two-way shear; carbon fiber reinforced polymers; glass fiber reinforced polymers
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Mohamed, O.A.; Kewalramani, M.; Khattab, R. Fiber Reinforced Polymer Laminates for Strengthening of RC Slabs against Punching Shear: A Review. Polymers 2020, 12, 685.

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