Abstract
Two experiments of accelerated corrosion are carried out in a reinforced concrete block and a cylinder to calibrate a finite three-dimensional element model where the corrosion cracking is simulated due to the expansion of oxides. The model obtained is used then to find a theoretical relationship between the consumed steel (corrosion penetration) and the crack's width. It is found that this relationship is a function of the corroded length, free coating, reinforcement diameter and concrete type. The results obtained are validated with three experiments found in literature: a beam subjected to accelerated corrosion, and two beams subjected to natural corrosion conditions. These beams are also subjected to the simultaneous action of flexion and corrosion, as they are expected to be found in use. It is shown that there is a good correlation between the model and experimental results.
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