Prediction Methods for Concrete Diagnosis with Electrochemical Test and Probability

Corrosion of reinforcing bars causes serious damages to concrete structures, for example, initiation and growth of cracks, exfoliation, and losing their durability. In concrete structural integrity assessment and repair, it is very important and difficult to know when the defects will be appeared and where the priority points should be repaired. In this paper, the accuracy of the two prediction methods of concrete deterioration, the electrochemical methods and the probability model, are assessed using experimental data. It is concluded that electrochemical method is useful for the concrete parts and the probability model methods are useful for maintenance planning of many concrete structures.