Corrosion-Inhibiting Systems for Durable Concrete Bridges. I: Five-Year Field Performance Evaluation
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Volume 20, Issue 1
Abstract
The performance of nine commercially available corrosion-inhibiting systems for use in reinforced concrete structures exposed to corrosive environments was assessed in the field on bridge barrier walls and in accelerated electrochemical cells in the laboratory. The corrosion-inhibiting systems included concrete admixtures, reinforcing steel coatings, and/or concrete surface coatings/sealers. The results of this study are presented in two companion papers, in which the field evaluation and laboratory investigation are reported. The field evaluation consisted of annual corrosion surveys of half-cell potential and corrosion rate, as well as remote monitoring with embedded instrumentation for the measurement of the environmental conditions. After five years of investigation, the system containing an inorganic-based admixture performed better than others in reducing the risk of reinforcement corrosion in the barrier wall. It was also found that the system using epoxy-coated reinforcement showed good early performance during the first year, but after, the risk of corrosion increased relatively faster than in other systems, possibly due to localized pitting corrosion developing in small defects or pores of the epoxy coating.
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Acknowledgments
The financial and technical contributions of our project partners are gratefully acknowledged, namely, Ministère des Transports du Québec (MTQ), Axim-Italcementi Group, Caruba Holdings, Euclid Admixture Canada, Israel Richler Trading, Master Builders Technologies, Sika Canada, W.R. Grace & Co., the Regional Municipality of Peel, and IRAP. The sustained assistance of Louis Marie-Bélanger and Daniel Vézina from the MTQ is also gratefully acknowledged. The writers would also like to thank Noel Mailvaganam and Roger Willoughby for their expertise and advice, and Mark Arnott, Rock Glazer, Ted Hoogeveen, and Gordon Chan for their valuable technical assistance.
References
ACI Committee 222. (2001). “Protection of metals in concrete against corrosion.” American Concrete Institute, Farmington Hills, Mich.
Broomfield, J. P. (1996). “Permanent corrosion monitoring.” Constr. Build. Mater., 10(2), 44–49.
Broomfield, J. P., Rodriguez, J., Ortega, L. M., and Garcia, A. M. (1993). “Corrosion rate and life prediction for reinforced concrete structures.” Proc., Structural Faults and Repairs Symp., Edinburgh, Scotland, June, Vol. 2, 155–164.
Chambers, B. D., Taylor, S. R., and Lane, D. S. (2003). “An evaluation of new inhibitors for rebar corrosion in concrete.” Rep. No. VTRC 03-R8, Virginia Transportation Research Council.
Cusson, D., and Repette, W. (2000). “Early-age cracking in reconstructed concrete bridge barrier walls.” ACI Mater. J., 97(4), 438–446.
Elsener, B. (2001). “Corrosion inhibitors for steel in concrete: State of the art report.” Publication No. 35 of the European Federation of Corrosion, The Institute of Material.
Elsener, B., Andrade, C., Gulikers, J., Polder, R., and Raupach, M. (2003). “Half-cell potential measurements—Potential mapping on reinforced concrete structures.” Mater. Struct., 36, 461–471.
Feliu, S., Gonzalez, J. A., Feliu, S., Jr., and Andrade, C. (1990). “Confinement of the electrical signal for in situ measurement of polarization resistance in reinforced concrete.” ACI Mater. J., 87(5), 457–460.
Hansson, C. M., Seabrook, P. T., and Marcotte, T. D. (2004). “In-place corrosion monitoring.” Concr. Int., 26(7), 59–65.
Neville, A. M. (1996). Properties of concrete, 4th Ed., Wiley, New York.
Pruckner, F., and Gjorv, O. E. (2001). “Measurements of relative humidity in concrete.” Proc., 3rd Int. Conf. on Concrete under Severe Conditions, N. Banthia, K. Sakai, and O. E. Gjorv, eds., Vancouver, 1489–1496.
Rodriguez, J., Ortega, L. M., and Garcia, A. M. (1994). “Assessment of structural elements with corroded reinforcement.” Corrosion and corrosion protection of steel in concrete, R. N. Swamy, ed., Sheffield Academic Press, Sheffield, 171–185.
Smith, J. L., and Virmani, Y. P. (2000). “Materials and methods for corrosion control of reinforced and prestressed concrete structures in new construction.” Rep No. FHWA-RD-00-081, FHWA, August.
Stoltzner, E., Knudsen, A., and Buhr, B. (1997). “Durability of marine structures in Denmark.” Proc., Int. Conf. on Repair of Concrete Structures from Theory to Practice in a Marine Environment, A. Blankvoll, ed., Svolvaer, Norway, May, 59–68.
TRB. (1996). “Transverse cracking in newly constructed bridge decks.” National Cooperative Highway Research Program Rep. No. 380, Transportation Research Board, National Academy Press, Wash.
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© 2008 ASCE.
History
Received: May 13, 2005
Accepted: Nov 30, 2006
Published online: Jan 1, 2008
Published in print: Jan 2008
Notes
Note. Associate Editor: Byung Hwan Oh
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