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1 Bulletin of the Polish Academy of Sciences. Technical Sciences

1 2013

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Prediction of the reinforced concrete structure durability under the risk of carbonation and chloride aggression

Czarnecki L., Woyciechowski P.

Bulletin of the Polish Academy of Sciences. Technical Sciences

2013

Vol. 61, nr 1

173-181

The paper presents an idea of predicting durability of concrete structures with steel reinforcement under conditions of chloride and carbonation corrosion risk. Mechanisms of destruction due to steel corrosion in such conditions are shown. The recently elaborated model of carbonation and general model of chloride diffusion have been discussed. An algorithm of the rest service life time prognosis has been shown and options of its main stages realization have been done. An example of durability prognosis for pre-stressed hollow-core floor slab with upper layer of concrete and epoxy-resin coating has been given. This example confirms the usefulness of the described prognosis method and demonstrates its helpfulness in a structure management according to the standards of EN 1504 series.