Assessing Corrosion on Steel Structures Using Corrosion Coulometer
Publication: Journal of Infrastructure Systems
Volume 2, Issue 3
Abstract
Corrosive exposure and subsequent deterioration of weathering steel structures cause strength loss due to cross-section thinning as well as crack susceptibility due to formation of notches that concentrate stresses. Key issues include rapidly drying versus extended wet time surfaces, the relationship of clean versus debris-covered surfaces to corrosion, and disparities between test site and service conditions. An adequate understanding of corrosion, corrosion's relationship to steel structure serviceability, and the ability to monitor, predict, and abate corrosion are important needs for weathering steel structures. To implement these needs, data on corrosive conditions were collected from corrosion coulometers placed on seven structures in varied environments, at one preconstruction site and at two corrosion test sites. An analysis of corrosion processes leading to cross-section thinning, notching, and loss of fatigue strength is presented. Improved service and maintenance, enhanced design methodologies, and cost savings are anticipated outcomes.
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Information & Authors
Information
Published In
Journal of Infrastructure Systems
Volume 2 • Issue 3 • September 1996
Pages: 139 - 144
Copyright
Copyright © 1996 American Society of Civil Engineers.
History
Published online: Sep 1, 1996
Published in print: Sep 1996
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