Impacts of cathodic protection on pipe break probabilities: a Toronto case study

The pipe break database of the Greater Toronto Area (GTA), dating from 1960, is used to quantify the impacts of cathodic protection (CP) on the frequency of pipe breaks. The findings demonstrate that the average time between pipe breaks increases by up to an average of almost 4 years for ductile iron pipes after CP is placed on a pipe. Further, the probability of a pipe break occurring 10 years after the application of CP decreases in …