Investigated were relationships between deteriorated coating surface conditions of laboratory test panels determined by image processing software and coating impedance data collected with Electrochemical Impedance Spectroscopy (EIS). This study demonstrates that estimation of log(Rpo)at a certain deterioration stage is feasible via field image processing alone without running in-situ EIS measurements and going through time consuming EIS fitting analysis.

• 이찬영(한국도로공사 도로교통연구원 책임연구원, 공학박사) | Lee, Chan-Young