Inspect and Evaluation of the Effect of Sacrificial Anode Cathodic Protection for Steel Piles

The content and methods of inspection were introduced based on inspection results of sacrificial anode cathodic protection system of steel piles of a 50, 000 t-class wharf in South China. The remaining life of the anodes was accurately calculated by modified formula, and the reason of the relatively low potential of the terminal end of the steel sheet piles was analyzed. Some suggestions of maintenance for the sacrificial anode cathodic protection system were put forward.