SYMPOSIA PAPER Published: 01 January 1992
STP19760S

Utilization of Electrochemical Impedance Techniques to Estimate Corrosion Damage of Steel Infrastructures

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Infrastructures such as bridges, highways, pipelines and harbor piers sometimes suffer from corrosion damage during their service life. To diagnose deterioration of infrastructures and secure effective maintenance, in-situ corrosion monitoring methods based on electrochemical impedance techniques have been developed. This paper reports three examples of new corrosion monitoring sensors: 1) a sensor for detecting corrosion of marine steel structures in seawater, 2) a sensor for detecting corrosion of reinforcing bars in concrete, and 3) a sensor for detecting coating deterioration of painted steel structures in the atmosphere. The effectiveness of these sensors has been verified by experiments both in the laboratory and in the field.

Author Information

Homma, K
Steel Research Laboratories, Technical Development Bureau, Nippon Steel Corporation, Chiba-ken, Japan
Goto, N
Steel Research Laboratories, Technical Development Bureau, Nippon Steel Corporation, Chiba-ken, Japan
Matsuoka, K
Steel Research Laboratories, Technical Development Bureau, Nippon Steel Corporation, Chiba-ken, Japan
Ito, S
Steel Research Laboratories, Technical Development Bureau, Nippon Steel Corporation, Chiba-ken, Japan
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Details
Developed by Committee: G01
Pages: 155–169
DOI: 10.1520/STP19760S
ISBN-EB: 978-0-8031-5197-0
ISBN-13: 978-0-8031-1432-6