This paper shows how a certain secondary reaction resulting from cathodic protection, such as that caused by the reduction of oxygen leading to alkalinization, can be fundamental in the filling of fissures appearing in concrete. At first, several small trial tests were performed. Later, the results are applied on an industrial scale, with satisfactory results.
Keywords: cracks, pitting corrosion, carbonates, alkalinization, cathodic protection, stopping of cracks.