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Corrosion monitoring of reinforcing steel in RC beam by an intelligent corrosion sensor

  • School of Civil Engineering, Harbin Institute of Technology
  • Dalian University of Technology

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

Health degradation by corrosion of steel in civil engineering is a persistent problem. Structural health monitoring techniques can lead to improve estimates of structural safety and serviceability effectively. The corrosion sensor and the monitoring method have been explored and applied in RC beam's corrosion monitoring. A novel five-electrode corrosion sensor has been developed to provide the platform for corrosion monitoring of the steel bar in concrete beam by electrochemical method. Half-cell potential of the RC beam has been measured to identify the corrosion statues of the steel bar qualitatively. Galvanostatic step method has been used to excite the steel-concrete system and the transient response of the system has been obtained. The data of the transient response has been analyzed by segmented method. Some important electrochemical parameters have been extracted by this method. The results show it is effectively to analyze the data of the transient response by segmented method.

Original languageEnglish
Title of host publication2nd International Conference on Smart Materials and Nanotechnology in Engineering
DOIs
StatePublished - 2009
Event2nd International Conference on Smart Materials and Nanotechnology in Engineering - Weihai, China
Duration: 8 Jul 200911 Jul 2009

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume7493
ISSN (Print)0277-786X

Conference

Conference2nd International Conference on Smart Materials and Nanotechnology in Engineering
Country/TerritoryChina
CityWeihai
Period8/07/0911/07/09

Keywords

  • Corrosion monitoring
  • Corrosion sensor
  • Electrochemical method
  • Reinforcing steel

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