domingo, 7 de fevereiro de 2010

PROTEÇÃO CATÓDICA ESTRUTURAS DE CONCRETO ARMADO

In cathodic protection a new anode material is introduced into the concrete, which is artificially made more negative than any part of the reinforcement. This highly negative material releases it’s excess electrons. These released electrons are spread to all areas of reinforcement where they electrolyse water and oxygen to make hydroxide ions. The anodic reaction on the new anode reverses this process to convert hydroxide ions back into water and oxygen. This is shown above.


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