Corrosion of steel reinforced concrete in the tropical coastal atmosphere of Havana City, Cuba

AUTOR(ES)

Castañeda, Abel, Howland, Juan José, Corvo, Francisco, Pérez, Tezozomoc

FONTE

Quím. Nova

DATA DE PUBLICAÇÃO

2013

RESUMO

The influence of chloride deposition rate on concrete using an atmospheric corrosion approach is rarely studied in the literature. Seven exposure sites were selected in Havana City, Cuba, for exposure of reinforced concrete samples. Two significantly different atmospheric corrosivity levels with respect to corrosion of steel reinforced concrete were observed after two years of exposure depending on atmospheric chloride deposition and w/c ratio of the concrete. Changes in corrosion current are related to changes in chloride penetration and chloride atmospheric deposition. The influence of sulphur compound deposition could also be a parameter to consider in atmospheric corrosion of steel reinforced concrete.

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