Resumo

SOSA, M. R. et al. Analysis of the concrete-steel interface in specimens exposed to the weather and immersed in natural sea water. Rev. ALCONPAT [online]. 2018, vol.8, n.1, pp.16-29.  Epub 26-Jun-2020. ISSN 2007-6835.  https://doi.org/10.21041/ra.v8i1.203.

The electrochemical behavior in reinforced concrete structures with and without sodium chloride (NaCl) in the mixing water in a marine / tropical environment was evaluated. The monitoring consisted of measuring the corrosion potential (Ecorr), the advance of carbonation front (xCO2) and a photographic record of the concrete / steel interface at different stages of the period of time of exposure. In the exposure to the weather, the addition of NaCl to the mixing water favored the advance of carbonation. The presence of chlorides was a determining factor at the beginning and development of the corrosion process in both exposures to the weather and immersion.

Palavras-chave : reinforced concrete; carbonation; corrosion potential; concrete-steel interface; chloride ion.