EFFECT OF AGGRESSIVE MEDIA AND TYPE OF CURING ON CORROSION OF REINFORCED CONCRETE SPECIMENS

In the present investigation, the study of corrosion in concrete specimens with different types of curing was carried out, one curing according to ONNCCE regulations, the second curing as it is commonly used in works where there is no quality control, which is wetting in the mornings and afternoons, and the most critical one which would be without any curing, these specimens were made with two mixtures, designed according to ACI 211.1, with a w/c ratio of 0.45 and 0.65, were subjected to two exposure environments, six specimens to weathering or urban environment (Xalapa City environment) and the remaining six were immersed in a marine environment (sea water), obtained in the port of Veracruz. The corrosion evaluation was carried out by monitoring the half-cell potentials according to ASTM C-876-09, the results show that the type of curing does not influence in a determinant way the probability of corrosion when the concrete is exposed to the environment of Xalapa City, Veracruz, given its constant relative humidity of 80% throughout the year, on the contrary, in a marine environment the curing is determinant for a longer time of performance against corrosion.