Long-term monitoring of reinforcement corrosion in concrete using ground penetrating radar

作者：Hong, Shuxian; Wiggenhauser, Herbert; Helmerich, Rosemarie; Dong, Biqin; Dong, Peng; Xing, Feng^*

来源：Corrosion Science, 2017, 114: 123-132.

DOI：10.1016/j.corsci.2016.11.003

• Steel reinforced concrete
• Atmospheric corrosion
• Pitting corrosion

A new method for periodically monitoring reinforcement corrosion in concrete with Ground-Penetrating Radar (GPR) is proposed and a ten-year long-term corrosion periodic monitoring experiment is reported. GPR historical data was taken in different years, under different conditions. In order to align and normalize the obtained images properly prior to effectively performing any automatic defect detection, image registration techniques based on mutual-information are employed, and a new signal processing scheme is proposed for normalizing the intensity of GPR images. Then, the processed image results can be used to compare and find out the change of GPR detection due to corrosion.

• 出版日期2017-1
• 单位深圳大学