BEHAVIOUR OF STEEL REINFORCED CONCRETE COLUMNS STRENGTHENED WITH CARBON FIBRE REINFORCED POLYMER (CFRP)
1 Nigerian Building and Road Research Institute, Plot 5 Old Katsina Road, Kano, Nigeria
2 Department of Civil Engineering, Ahmadu Bello University, Zaria, Nigeria
* Corresponding author: mabbas@yahho.com
2 Department of Civil Engineering, Ahmadu Bello University, Zaria, Nigeria
* Corresponding author: mabbas@yahho.com
Abstract
This paper investigated the use of Carbon Fibre Reinforced Polymer for increasing strengtheningof Reinforced Concrete Columns. Squared Reinforced Concrete Columns were selected for thestudy, being them more frequently used in building, The performance of the columns wrapped withCFRP were compared to non-wrapped column (control). Twelve columns with cross-sectionaldimensions 100mmX100mmX375mm with constant corner radius of 15mm, were tested underaxial loading. Three columns each were wrapped with one and two layer of CFRP respectively,and the remaining three columns were not wrapped as they served as the control columns.Experimental results showed increased ductility from 17% and 22.6% respectively for columnspecimens wrapped with one and two layers of CFRP compared to the control specimens. Also,increase in axial load-carrying capacity up to 60% and 129% were respectively achieved forcolumn specimens wrapped with one and two layers of CFRP compared to the control specimens.
Keywords
CFRP
ductility
confined column
epoxy resin
References
- Abdel-Hay, A. S. (2014). Partial strengthening of R.C square columns using CFRP. HBRC Journal, 10(3), 279–286. https://doi.org/10.1016/j.hbrcj.2014.01. 001
- ACI Committee 440. (2002). Guide for the design and construction of externally bonded FRP systems for strengthening concrete structures, Technical report.
- British Standard Institution. (2011). BS EN 197-1, Cement: composition specifications and conformity criteria for common cement. London, England.
- British Standard Institution. (2013). BS EN 12620: Aggregate for concrete. London, England.
- Carse, A., Spathonis, M. J., Chandler, M. L., Gilbert, M. D., Johnson, M. B., Uws, A. J., & and Pham, L. (2002). Report 2002-005-C-01: Review of Strengthening Techniques Using Externally Bonded Fiber Reinforced. CRC for Construction Innovation, Brisbane.
- Grigg, N.S. (1988) Infrastructure Engineering and Management. John Wiley and Sons, New York.
- Raval, R., & Dave, U. (2013). Behavior of GFRP wrapped RC columns of different shapes. Procedia Engineering, 51, 240–249. https://doi.org/10.1016/j.proeng.2013.0 1.033
- Widiarsa, I. B. R., & Hadi, M. N. S. (2013). Performance of CFRP wrapped square reinforced concrete columns subjected to eccentric loading. Procedia Engineering, 54, 365–376. https://doi.org/10.1016/j.proeng.2013.0 3.033
How to Cite
Abbas, M., Kaura, J. M., Ocholi, A., & Lawan, A. (2020). BEHAVIOUR OF STEEL REINFORCED CONCRETE COLUMNS STRENGTHENED WITH CARBON FIBRE REINFORCED POLYMER (CFRP). Kaduna State University Environmental Sciences Journal, 1(2), 189-195. https://doi.org/10.66884/kesj.2020.fnjqvwz5
M. Abbas, J. M. Kaura, A. Ocholi, and A. Lawan, "BEHAVIOUR OF STEEL REINFORCED CONCRETE COLUMNS STRENGTHENED WITH CARBON FIBRE REINFORCED POLYMER (CFRP)," Kaduna State University Environmental Sciences Journal, vol. 1, no. 2, pp. 189-195, December 2020. doi: 10.66884/kesj.2020.fnjqvwz5
