Estudo do sistema de proteção catódica no concreto armado

Abstract

This research studied the cathodic protection method, through the sacrifice of two metals with greater oxidation potentials than steel, to prevent the action of corrosion on it. In this study, a comparative analysis was carried out between two metals zinc and aluminum. To evaluate the effectiveness of both anodes in the cathodic protection system. During the experiment, specimens were created to simulate a reinforced concrete structure with resistance similar to those used in construction and stored in an extremely aggressive environment in order to deal with a worst-case scenario. At the end of 7 months, the final data of the experiment were collected. From this, visual analyzes indicated signs of reactions as the aluminum sheet had apparent and significant degradation. However, the analysis carried out with the initial and final masses did not show a difference that could highlight the entire phenomenon, making the result unsatisfactory. However, it highlighted the need for a more in-depth study on the topic.