Durability is described as the ability of a material to maintain its physical and mechanical properties over time. In reinforced concrete (RC) structures, concrete is the ideal material to protect the steel reinforcement. However, the RC structures are exposed to environmental loads, which cause the deterioration of materials as corrosion of reinforcement. The standard STN EN ISO 9224 describes the calculation of the whole corrosion loss. Despite these calculations, it is appropriate to perform the measurements on the real samples, which are time consuming. For this reason, it is useful to use accelerated corrosion test. The basis of our research was to compare the results of thickness of corrosion loss in accelerated corrosion test according the standard STN EN ISO 9227 with the calculation of corrosion loss according the standard STN EN ISO 9224.
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