Monitoring Corrosion in Oxide and Chloride Environments Using Ultrasonic Guided Waves
Publication: Journal of Materials in Civil Engineering
Volume 23, Issue 2
Abstract
Ultrasonic guided waves have been used for monitoring progression of rebar corrosion in concrete in chloride and oxide environments. The effect of rates of corrosion in the two environments on the ultrasonic signals is reported. Surface- and core-seeking guided wave modes were used to monitor beams undergoing accelerated impressed current corrosion in the presence (chloride corrosion) and absence of chlorides (oxide corrosion). Effective combination of guided wave modes could relate to the differences in corrosion mechanisms and rates in the two environments. Ultrasonic test results correlated well with that of the destructive tests.
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Acknowledgments
The fund received from the Department of Science and Technology, Government of India, and All India Council of Technical Education is gratefully acknowledged. Dr. Tribikram Kundu, University of Arizona, visited the health monitoring laboratory of the university on an NSF grant. The writers acknowledge his advice on the study.
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Information & Authors
Information
Published In
Journal of Materials in Civil Engineering
Volume 23 • Issue 2 • February 2011
Pages: 207 - 211
Copyright
© 2011 ASCE.
History
Received: Oct 9, 2009
Accepted: Jun 21, 2010
Published online: Jan 14, 2011
Published in print: Feb 2011
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