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Advances in Concrete Construction Volume 19, Number 6, June 2025 , pages 403-410 DOI: https://doi.org/10.12989/acc.2025.19.6.403 |
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Enhancing resilience of repaired RC column using thin polypropylene fiber reinforced concrete jacketing |
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Rachid Labdaoui, Abdennour Toukal and Mohammed Kadri
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| Abstract | ||
| This study investigates the effectiveness of thin jacketing with polypropylene fiber-reinforced concrete for strengthening reinforced concrete (RC) columns. Full-scale specimens were retrofitted using thin jackets of polypropylene fiberreinforced concrete, steel fiber-reinforced concrete, and plain concrete, then subjected to a constant vertical load combined with cyclic horizontal loading to simulate seismic conditions. Key performance metrics, including load-bearing capacity, ductility, energy dissipation, damage index, and crack propagation, were assessed and compared. The findings highlight the effectiveness of fiber-reinforced concrete thin jacketing in enhancing the seismic performance of RC columns. Notably, this method significantly improves load-bearing capacity, ductility, and energy dissipation while delaying crack formation and enhancing overall seismic resilience. | ||
| Key Words | ||
| cyclic loading; damage index; polypropylene fibers; RC columns; reinforcement; steel fibers | ||
| Address | ||
| (1) Rachid Labdaoui, Abdennour Toukal: Materials-Processes and Environment Research Unit, University of Boumerdes, 35000, Algeria; (2) Mohammed Kadri: Civil Engineering Department, University of Boumerdes, 35000, Algeria. | ||
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