Yousif Jabbar Lafta, Hawraa S. Malik* and Majid Faissal Jassim
\nFlexural behavior of RC beams externally
\nreinforced with CFRP composites using various
\nstrategies
\nhttps:\/\/doi.org\/10.1515\/eng-2022-0492
\nreceived June 14, 2023; accepted July 22, 2023
\nAbstract: The external composite material bonding is an
\neffective and practical method for flexural strengthening
\nof reinforced concrete (RC) beams, providing a large
\nopportunity to develop high-performance and cost-effective
\nstructures. Numerous uses exist for carbon fiber-reinforced
\npolymer (CFRP) materials as RC-member strengthening
\nmethods. However, issues with bonding and de-bonding
\ncontinue to be a barrier to this technique’s accomplishment.
\nIn this research, the CFRP sheets were integrated
\nas an external strengthening material to evaluate their
\ncontribution to the flexural performance and so determine
\nhow well the CFRP sheets are being used. The experimental
\nwork includes one control beam and ten RC beams with
\nCFRP sheets as external strengthening. All beams have the
\nsame dimensions: a length of 1.7m and a sectional area of
\n20 cm \u00d7 25 cm. Experimental tests were carried out with
\nvarying CFRP types, lengths, numbers, and arrangements.
\nEach beam\u2019s performance was evaluated in terms of failure
\nmode, ultimate load capacity, ultimate deflection, and a
\nload\u2013deflection curve. The findings demonstrate the effectiveness
\nof CFRP strengthening by demonstrating a considerable
\nimprovement in the majority of the study variables.
\nFurthermore, the CFRP strengthening offered an exterior
\ncrack-arresting mechanism.
\nKeywords: flexural behavior, reinforced concrete, composite
\nmaterial, carbon fiber-reinforced polymer<\/p>\n
<\/p>\n
10.1515_eng-2022-0492 (2)<\/a><\/p>\n <\/p>\n","protected":false},"excerpt":{"rendered":"