Carbon Fiber-Reinforced Polymer (CFRP) Confinement Strategies for Concrete Columns: Evaluating the Efficacy of Full and Partial Wrapping Methods

Authors

  • Saci Dahmani Faculty of Science and Technology, University of Tamanghasset, Tamanghasset 11001, Algeria
  • Nour El Houda Khitas Civil Engineering Research Laboratory of Sétif (LRGCS), Department of Civil Engineering, Ferhat Abbas University of Sétif 1, Sétif 19000, Algeria
  • Riad Babba Faculty of Science and Technology, University of Tamanghasset, Tamanghasset 11001, Algeria
  • Kamel Hebbache Civil Engineering Research Laboratory of Sétif (LRGCS), Department of Civil Engineering, Ferhat Abbas University of Sétif 1, Sétif 19000, Algeria
  • Abdellah Douadi Civil Engineering Research Laboratory of Sétif (LRGCS), Department of Civil Engineering, Ferhat Abbas University of Sétif 1, Sétif 19000, Algeria
  • Mourad Boutlikht Civil Engineering Research Laboratory of Sétif (LRGCS), Department of Civil Engineering, Ferhat Abbas University of Sétif 1, Sétif 19000, Algeria
  • Abdelraouf Messai Civil Engineering Research Laboratory of Sétif (LRGCS), Department of Civil Engineering, Ferhat Abbas University of Sétif 1, Sétif 19000, Algeria
  • Cherif Belebchouche Civil Engineering Research Laboratory of Sétif (LRGCS), Department of Civil Engineering, Ferhat Abbas University of Sétif 1, Sétif 19000, Algeria

DOI:

https://doi.org/10.63278/1361

Keywords:

CFRP, Concrete Columns, Full Confinement, Partial Confinement, Compressive Strength, Ductility, Structural Performance.

Abstract

This study evaluates the effectiveness of full and partial fiber-reinforced polymer (FRP) confinement techniques on concrete columns, with a focus on carbon fiber-reinforced polymers (CFRP). Experimental results revealed that full CFRP confinement markedly improves both compressive strength and ductility. Specifically, columns fully confined with CFRP exhibited a maximum increase in compressive strength of 89.36% compared to unconfined specimens. In contrast, partial confinement using horizontal strips with a 30 mm spacing resulted in a 49.53% increase in compressive strength, though this was 21.03% less than that achieved with full confinement. Spiral confinement, with spacings of 45 mm and 65 mm, achieved strength increases of 3.03% and 6.58%, respectively, with a maximum enhancement of 21.90% compared to unconfined concrete. Deformation results showed that horizontal strips enhanced ultimate axial deformation by up to 610.78%, whereas spiral confinement improved deformation by 591.42% at 30 mm spacing. The study concludes that horizontal CFRP strips provide superior performance and efficiency for strength enhancement compared to spiral confinement. These findings indicate that partial CFRP confinement is a viable alternative to full confinement, offering substantial improvements in concrete strength and deformation while optimizing material use and installation complexity.

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Published

2025-03-13

How to Cite

Saci Dahmani, Nour El Houda Khitas, Riad Babba, Kamel Hebbache, Abdellah Douadi, Mourad Boutlikht, Abdelraouf Messai, and Cherif Belebchouche. 2025. “Carbon Fiber-Reinforced Polymer (CFRP) Confinement Strategies for Concrete Columns: Evaluating the Efficacy of Full and Partial Wrapping Methods ”. Metallurgical and Materials Engineering 31 (3):238-46. https://doi.org/10.63278/1361.

Issue

Vol. 31 No. 3 (2025)

Section

Research

License

Copyright (c) 2025 Saci Dahmani, Nour El Houda Khitas, Riad Babba, Kamel Hebbache, Abdellah Douadi, Mourad Boutlikht, Abdelraouf Messai, Cherif Belebchouche

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