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concrete structures, pore solution, reinforcing steel, polarization resistance, impedance spectroscopy

 

concrete structures, pore solution, reinforcing steel, polarization resistance, impedance spectroscopy

 

concrete structures, pore solution, reinforcing steel, polarization resistance, impedance spectroscopy

 

concrete structures, pore solution, reinforcing steel, polarization resistance, impedance spectroscopy

Ochrona przed Korozją, vol. 59, nr 6, 2016, s. 210-213

This paper describes the original method of limiting polarization current distribution during the measurements of corrosion rate of reinforcement in concrete. On the basis of assumptions behind this method, the polarization range can be limited by cutting through the concrete cover thickness providing that the cut diameter corresponds to the diameter of a disk electrode in a measuring head. The ring-shaped cut is filled with an insulator which simultaneously fixes locally damaged concrete. Electrochemical measurements by LPR and EIS techniques were used to verify the assumptions of the proposed method in the solution simulating concrete pore solution. A working electrode was a smooth steel bar, and counter electrodes were made of circular metal plate and rectangular wire mesh. A fragment of the plastic pipe simulated the ring-shaped dielectric in the pore solution. In the summary, the approximate electrical model explains the analysed phenomenon.

Jaśniok T., Jaśniok M.

A simple method of limiting polarization range during measurements of corrosion rate of reinforcement in concrete

01 June 2016
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