Please use this identifier to cite or link to this item: https://hdl.handle.net/11681/20274
Title: Demonstration of reactive vitreous coatings on reinforcement steel to prevention corrosion and concrete failure : final report on Project F08-AR01
Authors: Morefield, Sean W.
Weiss, Charles A.
Malone, P. G.
Martinez, Victor.
Keywords: Reinforced concrete--Corrosion
Steel--Corrosion
Concrete--Service life
Military bases
Steel bars
Corrosion and anti-corrosives
Pavements
Reinforced concrete.
Issue Date: 2016
Publisher: United States. Department of Defense. Office of the Secretary of Defense.
United States. Army. Corps of Engineers.
Engineer Research and Development Center (U.S.)
Construction Engineering Research Laboratory (U.S.)
Geotechnical and Structures Laboratory (U.S.)
DoD Corrosion Prevention and Control Program (U.S.)
Series/Report no.: ERDC ; TR-16-14
Abstract: Abstract: The Department of Defense (DoD) Corrosion Prevention and Control Program funded a project to evaluate the corrosion performance of a new vitreous reactive-silicate coating that can be bonded to steel reinforcement bars used in concrete structures. The technology was installed in pavement at Corpus Christi Army Depot (CCAD) where corrosion-induced concrete damage has contributed to costly accidents involving transport of aircraft engines. Test blocks designed and instrumented for accelerated corrosion testing were used to compare the performance of vitreous-coated bars with other types of bars. The vitreous-coated bars installed in CCAD pavement showed no sign of corrosion because atmospheric chlorides could not penetrate to reinforcement depth during the demonstration period. Test block custody was temporarily lost at the installation, during which time they were damaged and experimental controls were disrupted. When the blocks were split open for visual examination, the vitreous-coated samples had various amounts of surface corrosion on the bars and concrete traces. An economic analysis using a conservative service-life assumption for vitreous-coated rebars projected a return on investment of 44.69 over 30 years versus materials and methods currently used at CCAD. The technology requires further refinements and testing before it could be recommended for DoD-wide implementation.
Description: At head of title: "DoD Corrosion Prevention and Control Program."
URI: http://hdl.handle.net/11681/20274
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