Arc Sprayed Cathodic Protection for Concrete Bridges
Thermal sprayed coatings have become an accepted method of installing
cathodic protection on concrete structures that are subject to chloride induced
corrosion11. Recent developments in high deposition twin wire
electric arc spray systems have enabled cathodic protection to be a cost
effective method of extending the life of concrete bridges and other structures.
Containment used by Interstate Coatings, Inc. when arc spraying the Yaquina Bay
Bridge on the Oregon Coast (near Newport, Oregon). This project was the first
use of 3/16" zinc arc spray wire for cathodic protection of concrete bridge
Zinc applied to concrete on the Eastbound portion of the Howard Frankland
Bridge, which spans over two miles of Tampa Bay, Florida. Over 120,000
square feet of concrete was metalized in this Florida Department of
Transportation rehabilitation project.
References and Additional Sources of Information:
- Randy Nixon, "An Introduction to the Deterioration of Concrete", Journal of Protective Coatings & Linings (July 1997), 59.
- Mahlon S. Wixson, "Arc Sprayed Zinc Coatings for Cathodic Protection of Steel Rebar in Concrete", Paper presented at 1993 AWS International Welding Exposition
- Martin S. McGovern, "CP OK with ODOT", Concrete Repair Digest (October/November 1994).
- Bernard S. Covino, R., Sophie J. Bullard, Gordon R. Holcomb, Stephen D. Cramer, Galen E. McGill and Curt B. Cryer, "Factors Affecting the Bonding of Arc-Sprayed Zinc to Concrete", Proceedings of the SSPC 95 Seminars, 115
- Paul D. Carter and Pierre Crevolin, "Galvanic Cathodic Protection Repair of
Reinforced Concrete Bridge Girders in a Cold Dry Climate", Paper presented at the Annual Conference of the Canadian Society for Civil Engineering at Edmonton, Alberta, Canada, May 31, 1996
- William R. Kratochvil, Elliot Sampson, "High Output Arc Spraying - Wire and Equipment Selection", Proceedings of the SSPC 1998 Seminars, 286
- R. Brousseau, M. Arnott, and B. Baldock, "Long-Term Factors Influencing the Adhesion of Metallized Zinc to Concrete", Journal of Thermal Spray Technology (March 1996), 49.
- Journal of Protective Coatings & Linings, (August 1992), News From the Field, "Oregon DOT Uses Zinc Metallizing with Cathodic Protection on Concrete Bridge ".
- J.E. Bennett, T.J. Schue, and G. McGill, "Protecting Reinforced Concrete Using Thermal-Sprayed Titanium Anodes", Materials Performance (November 1995), 23.
- Journal of Protective Coatings & Linings, (September 1998), 13, Problem Solving Forum, "Reaction of Aluminum-Filled Epoxy Mastic with Wet Concrete".
- F. Andrews-Phaedonos, I. Solomon, Vic Roads & D.J. Payne, "Sprayed Zinc Galvanic Anode System for the Cathodic Protection of Moodys Inlet Bridge, South Gippsland Highway, Victoria", Paper 187, 13th ICC.
- Sophie J. Bullard, Stephen D. Cramer, Bernard S. Covino, Jr., and Gordon R. Holcomb, "Thermal-Sprayed Zinc Anodes: Laboratory and Field Studies, " Proceedings of the SSPC 1997 Seminars, 309
- Bob Irving, "Thermal-Sprayed Zinc Coatings Defend Steel and Concrete Bridges", Welding Journal (September 1993), 69.
- Jack Bennett and Clem Firlotte, "Zinc/Hydrogel System for Cathodic Protection of Reinforced Concrete Structures", Materials Performance (March 1997), 14.