A Cathodic Protection (CP) coupon is a useful tool to evaluate the CP level of a buried structure; however, some issues have remained unresolved to date, such as CP coupon edge effects, coating effects, coupon orientations, base plate lateral width effects, etc.
The aim of this project was to study eight specific CP coupon related issues using numerical modeling, lab testing and large-scale field-testing methods to develop a practical guideline for CP coupon selection and field application. Through this research, the roles played by soil resistivity and the main CP coupon design parameters affecting...
The aim of this project was to study eight specific CP coupon related issues using numerical modeling, lab testing and large-scale field-testing methods to develop a practical guideline for CP coupon selection and field application. Through this research, the roles played by soil resistivity and the main CP coupon design parameters affecting CP coupon performance have been established. Moreover, new CP coupon phenomena were also identified which may deepen our understanding of CP coupons.