Tower Type Sensors for Monitoring Corrosion Risk in Cover-Zone Concrete

Abstract:

In order to monitor corrosion risk in cover-zone concrete, an integrated tower type sensor (TTS) was developed to obtain the electrochemical parameters such as concrete resistance, macro-cell current and the corrosion potential of built-in electrodes. To obtain valid macro-cell current value, specialized short-circuit acquisition time equal to 30 s has been defined in present cement mortar. The results indicate that the macro-cell current increases and cement mortar resistance decreases meanwhile with the content of chloride ions increase in imported chloride cement mortar. The effective measurement of the macro-cell current and cement mortar resistance allows TTS to be used as a corrosion risk monitoring system in cover-zone concrete.

• Periodical: Advanced Materials Research (Volumes 97-101)
• Pages: 4305-4308
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.97-101.4305
• Online since: March 2010
• Authors: Shuang Lu, Heng Jing Ba, An Jian Wang, Ying Zi Yang
• Keywords: Concrete, Corrosion, Cover-Zone, Macro-Cell Current, Resistance, Tower Type Sensor

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