Effects of Corrosion of Steel Reinforcement on RC Columns Wrapped with FRP Sheets
Publication: Journal of Performance of Constructed Facilities
Volume 23, Issue 1
Abstract
This study investigated the effectiveness of carbon fiber-reinforced polymer (CFRP) sheets in protecting reinforced concrete (RC) columns from corrosion of steel reinforcement. Thirty small-scale RC columns and four midscale RC columns were used in this study. The small-scale columns were used for a comprehensive parametric study, whereas the midscale columns were used to evaluate design guidelines proposed based on the results of the small-scale column tests. The test columns were conditioned under an accelerated corrosion process and then tested under uniaxial compression up to failure. The test results showed that although CFRP sheet wrapping decreased the corrosion rate, the corrosion of steel reinforcement could continue to occur, eventually showing a decrease in ultimate axial compression capacity. Design guidelines were proposed based on the small-scale RC column tests and evaluated through a comparison with the test results of midscale RC columns. The proposed design guidelines introduced a concept of effective area to account for the corrosion damage, such as internal cracking and cross-sectional loss of steel reinforcement.
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Acknowledgments
This research was funded by the Missouri Department of Transportation and National University Transportation Center at the Missouri University of Science and Technology. Their financial support is gratefully acknowledged.
References
American Concrete Institute (ACI). (2002). “Guide for the design and construction of externally bonded FRP systems for strengthening concrete structures.” ACI 440.2R-02, Farmington Hills, Mich.
American Concrete Institute (ACI). (2005). “Building code requirements for structural concrete and commentary.” ACI 318-05, Farmington Hills, Mich.
ASTM International. (2007). “Standard specification for steel wire, plain, for concrete reinforcement.” ASTM A82, West Conshohocken, Pa.
Bae, S. (2004). “Evaluation of the effects of various environmental conditions on RC columns wrapped with FRP sheets.” Ph.D. dissertation, Dept. of Civil, Architectural, and Environmental Engineering, Univ. of Missouri-Rolla, Rolla, Mo.
Berver, E., Fowler, D., Jirsa, J., and Wheat, H. (2001). “Corrosion in FRP-wrapped concrete members.” Proc., Int. Conf. on Structural Faults and Repair (CD-ROM), M. C. Ford, ed., Engineering Technics, London.
Bisby, L., Dent, A. J. S., and Green, M. F. (2005). “Comparison of confinement models for fiber-reinforced polymer-wrapped concrete.” ACI Struct. J., 102(1), 62–72.
Bonacci, J. (2000). “Rehabilitation of corrosion-damaged RC infrastructure using externally-bonded FRP.” Proc., 3rd Int. Conf. on Advanced Composite Materials in Bridges and Structures, Canadian Society for Civil Engineering, Ottawa, 679–686.
Carino, N. J. (1999). “Nondestructive techniques to investigate corrosion status in concrete structures.” J. Perform. Constr. Facil., 13(3), 96–106.
Chaallal, O., Hassan, M., and LeBlanc, M. (2006). “Circular columns confined with FRP: Experimental versus predictions of models and guidelines.” J. Compos. Constr., 10(1), 4–12.
Debaiky, A. S., Green, M. F., and Hope, B. B. (2002). “Carbon fiber-reinforced polymer wraps for corrosion control and rehabilitation of reinforced concrete columns.” ACI Mater. J., 99(2), 129–137.
El Maaddawy, T., Chahrour, A., and Soudki, K. (2006). “Effect of fiber-reinforced polymer wraps on corrosion activity and concrete cracking in chloride-contaminated concrete cylinders.” J. Compos. Constr., 10(2), 139–147.
Fam, A. Z., and Rizkalla, S. H. (2001). “Confinement model for axially loaded concrete confined by circular fiber-reinforced polymer tubes.” ACI Struct. J., 98(4), 451–461.
Fang, C., Lundgren, K., Chen, L., and Zhu, C. (2004). “Corrosion influence on bond in reinforced concrete.” Cem. Concr. Res., 34(11), 2159–2167.
Gardner, N. J. (1969). “Triaxial behavior of concrete.” ACI J., 66(2), 136–146.
Harajli, M. H., and Rteil, A. (2004). “Effect of confinement using fiber-reinforced polymer or fiber-reinforced concrete on seismic performance of gravity load-designed columns.” ACI Struct. J., 101(1), 47–56.
Ilki, A., and Kumbasar, N. (2002). “Behavior of damaged and undamaged concrete strengthened by carbon fiber composite sheets.” Struct. Eng. Mech., 13(1), 75–90.
Karbhari, V. M., and Gao, Y. (1997). “Composite jacketed concrete under uniaxial compression-verification of simple design equations.” J. Mater. Civ. Eng., 9(4), 185–193.
Mander, J. B., Priestley, M. J. N., and Park, R. (1988). “Observed stress-strain behavior of confined concrete.” J. Struct. Eng., 114(8), 1827–1849.
MacGregor, J. G. (1997). Reinforced concrete: Mechanics and design, 3rd Ed., Prentice-Hall, Upper Saddle River, N.J.
Master Builders Inc. (1998). Mbrace composite strengthening system engineering design guidelines, 2nd Ed., Cleveland.
Okba, S. H., El-Dieb, A. S., El-Shafle, H. M., and Rashad, A. (2003). “Evaluation of corrosion protection for reinforced concrete wrapped by FRP.” Proc., A New Era of Building (ICPCM2003) (CD-ROM), Elmaarefa Printing House, Cairo, Egypt.
Pantazopoulou, S. J., Bonacci, J. F., Sheikh, S., Thomas, M. D. A., and Hearn, N. (2001). “Repair of corrosion-damaged columns with FRP wraps.” J. Compos. Constr., 5(1), 3–11.
Samaan, M., Mirmiran, A., and Shahawy, M. (1998). “Model of concrete confined by fiber composites.” J. Struct. Eng., 124(9), 1025–1031.
Spoelstra, M., and Monti, G. (1999). “FRP-confined concrete model.” J. Compos. Constr., 3(3), 143–150.
Toutanji, H. A. (1999). “Stress-strain characteristics of concrete columns externally confined with advanced fiber composite.” ACI Mater. J., 96(3), 397–404.
Xiao, Y., and Wu, H. (2000). “Compressive behavior of concrete confined by carbon fiber composite jackets.” J. Mater. Civ. Eng., 12(2), 139–146.
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© 2009 ASCE.
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Received: Jun 21, 2007
Accepted: Mar 31, 2008
Published online: Feb 1, 2009
Published in print: Feb 2009
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