Corrosion Science and Technology

The Corrosion Science Society of Korea (한국부식방식학회)
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Cathodic Protection Behavior of Coastal Bridge Structure with Sacrificial Anode Cathodic Protection System

희생양극식 음극방식이 적용된 해안 교량 구조물의 방식거동

  • Received : 2012.11.19
  • Accepted : 2012.12.13
  • Published : 2012.12.31
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Abstract

This measurement represents the effectiveness of sacrificial anode cathodic protection (SACP) system in a coastal bridge structure. To verify the cathodic protection (CP) effect, the monitoring sensor (DMS-100) that could measure potential, corrosion rate, current, concrete resistivity, and temperature was embedded. The measurement conducted for three years after CP system was installed. Specifically, due to the fact that fresh water and sea water was repeated in the bridge structure, this bridge structure presented special CP behavior. Measurement factors were CP potential, CP current, concrete resistivity, and depolarization potential. In addition, visual inspection was also carried out. As a result of current and depolarization measurement, CP system was well activated in most piers.

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References

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