Abstract

MENESES, R. S.; MORO, J. M.; AVELDANO, R. R.  and  ORTEGA, N. F.. Influence of the thickness of the coating of the elements of reinforced concrete exposed to corrosion processes and subjected to external loads. Rev. ALCONPAT [online]. 2016, vol.6, n.2, pp.129-144. ISSN 2007-6835.  https://doi.org/10.21041/ra.v6i2.134.

When carrying out corrosion studies on reinforced concrete, it is important to consider the action of external loads in the tests, as this situation is the most frequent in the structures. In this work, we show the results obtained from exposing beams of reinforced concrete subjected to flexional effects, materialized with loads that generate equal tensile stress on the corroded reinforcement, to an accelerated corrosion process. The beams were manufactured with different coating thicknesses on the reinforcement and with a concrete of 25 MPa characteristic resistance. This study evidences the influence of the coating thickness of the reinforcement on the corrosion process and its external manifestation (cracking of the coating), compared with the same mechanical requests.

Keywords : corrosion of tensile reinforcement; coating; cracking.

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