2010 R&D 100 Winner
Textured steel bars have long been used internally in concrete support structures to provide torsional strength as a complement to concrete’s compressive abilities. However, the interface between the two materials has long been a weak point in the breakdown and failure of such structures.
The U.S. Army Engineer Research and Development Center (ERDC), Champaign, Ill. and Pro Perma Engineered Coatings LLC, Rolla., Mo., have invented a Corrosion-Resistant Vitreous Enamel Coating for Bonding Concrete to Steel that reduces the susceptibility of steel to rust and corrosion by at least 50%, and increases the bond strength between steel and concrete by 3 to 5 times.
During the coating process, alkali-resistant vitreous enamels are applied and heat-bonded to structural steel components, such as reinforcing bar. A water-reactive calcium silicate or aluminate, such as Portland cement, is then fused into the surface of the enamel by heating the slurry to 760°C. This coating protects the steel from rusting and produces a high bond strength.
Technology
Corrosion-resistant bond coating
Developers
U.S. Army Engineer Research and Development Center (ERDC)
Pro Perma Engineered Coatings LLC
Department of Defense Corrosion Prevention and Control Program
Development Team
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| (l-r): Charles Weiss, Sean Morefield, Philip Malone, Vincent Hock, U.S. Army Engineer Research and Development Center, and Michael Koenigstein, Pro Perma Engineered Coatings LLC |
The Corrosion-Resistant Vitreous Enamel Coating for Bonding Concrete to Steel Development Team:
Vincent Hock, U.S. Army Engineer Research and Development Center
Mike Koenigstein, Pro Perma Engineered Coatings LLC
Philip G. Malone, U.S. Army Engineer Research and Development Center
Sean Morefield, U.S. Army Engineer Research and Development Center
Charles A. Weiss, Jr.,U.S. Army Engineer Research and Development Center
