Avaliação de teor de íons cloro no ar atmosférico da praia do Porto das Dunas, em Aquiraz/CE

Abstract

The deterioration of reinforced concrete structures is a reality more and more present and impactful on technical, economic and social terms in Brazilian buildings. Corrosion of reinforcement in reinforced concrete falls within this context of greatly, mainly because of a large part of the great Brazilian capitals and, consequently, the high number of buildings constructed in this country are located in coastal regions, so more aggressive. This work aims to evaluate the content of chlorine ions in the marine aerosol on the beach of Porto das Dunas, Aquiraz-CE in relation to the distance to the sea through the wet candle method established by NBR 6211 (ABNT, 2001), beyond a comparative analysis of the results found with values obtained in other studies in Brazilian cities to evaluate environmental aggressiveness. For it were selected four points to 76, 500, 650 and 1000 meters from the coast and tested monthly as NBR 6211 (ABNT, 2001). Climatological measures were also extracted for results evaluation and characterization of the study. It was observed that the content of chlorides decays exponentially with distance from the sea. Aquiraz presented similar behavior only to study conducted in Fortaleza, obtaining high aggressiveness even 800 meters. Therefore these cities are far more aggressive than the other Brazilian cities.