Abstract

ZAMORA, M. A. B.; MENDOZA, D. N.; ZAMORA, H. H.  and  CALDERON, F. A.. Influence of the coating on the corrosion rate in concrete beams exposed to environment: DURACON Project. Port. Electrochim. Acta [online]. 2009, vol.27, n.3, pp.247-255. ISSN 0872-1904.

This work is part of the DURACON iberoamerican project, which deals with the characterization of the concrete durability exposed to environmental conditions at Iberoamerica, through the exposure of reinforced concrete specimens in at least two different environments, one marine and one urban, in each participating country. In this paper, results of the first eight months of the specimen exposition to environmental conditions in the Xalapa city, Mexico, are evaluated. The specimens were built with two types of concretes at 0.45 and 0.65 water/cement ratios. In all cases, the same type of cement with three thicknesses (1.5, 2.0 and 3.0 cm) of covering were used. The tests to evaluate the susceptibility to corrosion of the reinforced steel were resistance to linear polarization and monitoring of the corrosion potentials according to the ASTM C-876 norm.

Keywords : durability; corrosion; concrete; environment; coating.

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