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C. Xu, W.-L. Jin, Z.-Y. Li, "A Sensor Developed to Monitor Chloride Penetration in Coastal Concrete", in , (Editors), "Proceedings of the Fourteenth International Conference on Civil, Structural and Environmental Engineering Computing", Civil-Comp Press, Stirlingshire, UK, Paper 182, 2013. doi:10.4203/ccp.102.182

Keywords: corrosion sensor, cement mortar resistance, corrosion rate, reference electrode, EIS.

Summary

The corrosion of reinforcement induced by chloride has is one of the most frequent causes of their premature damage. Most corrosion sensors were designed to monitor the corrosion state in concrete, such as the Anode-Ladder-System of Germany and the Force Corrowatch of Denmark, are widely used to monitor chloride penetration in marine concrete. However, the principle of monitoring for these corrosion sensors is based on a macro-cell, error information may be tested especially in dry and wet conditions. In this paper, based on electrochemical polarization dynamics, a fast weak polarization method to test corrosion state of reinforcements is proposed. Furthermore, a new corrosion sensor for monitoring the corrosion state of cover concrete was developed. The sensor was tested in cement mortar, with a dry-wet cycle test to accelerate the ingress rate of chloride. The results show that the corrosion sensor can effectively monitor chloride penetration into the concrete with little influence on the relative humidity in concrete. It appears that the ohm-drop effect measured by the EIS can be ignored.

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Front Page Browse CCP CSETS CTR IJRT Other Authors Search Purchase Guide FAQ Contact us	Civil-Comp Proceedings ISSN 1759-3433 CCP: 102 PROCEEDINGS OF THE FOURTEENTH INTERNATIONAL CONFERENCE ON CIVIL, STRUCTURAL AND ENVIRONMENTAL ENGINEERING COMPUTING Edited by: Paper 182 A Sensor Developed to Monitor Chloride Penetration in Coastal Concrete C. Xu, W.-L. Jin and Z.-Y. Li Institute of Structural Engineering, Zhejiang University, Hangzhou, China doi:10.4203/ccp.102.182 purchase the full-text of this paper Full Bibliographic Reference for this paper C. Xu, W.-L. Jin, Z.-Y. Li, "A Sensor Developed to Monitor Chloride Penetration in Coastal Concrete", in , (Editors), "Proceedings of the Fourteenth International Conference on Civil, Structural and Environmental Engineering Computing", Civil-Comp Press, Stirlingshire, UK, Paper 182, 2013. doi:10.4203/ccp.102.182 Keywords: corrosion sensor, cement mortar resistance, corrosion rate, reference electrode, EIS. Summary The corrosion of reinforcement induced by chloride has is one of the most frequent causes of their premature damage. Most corrosion sensors were designed to monitor the corrosion state in concrete, such as the Anode-Ladder-System of Germany and the Force Corrowatch of Denmark, are widely used to monitor chloride penetration in marine concrete. However, the principle of monitoring for these corrosion sensors is based on a macro-cell, error information may be tested especially in dry and wet conditions. In this paper, based on electrochemical polarization dynamics, a fast weak polarization method to test corrosion state of reinforcements is proposed. Furthermore, a new corrosion sensor for monitoring the corrosion state of cover concrete was developed. The sensor was tested in cement mortar, with a dry-wet cycle test to accelerate the ingress rate of chloride. The results show that the corrosion sensor can effectively monitor chloride penetration into the concrete with little influence on the relative humidity in concrete. It appears that the ohm-drop effect measured by the EIS can be ignored. purchase the full-text of this paper (price £20) go to the previous paper go to the next paper return to the table of contents return to the book description purchase this book (price £65 +P&P)
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