Incidence of the Randomness of the Most Influential Parameters on the Reinforced Concrete Carbonation Time
A. Badaoui, M. Badaoui, F. Kharchi
Current Journal of Applied Science and Technology · pp. 524–535 · Published 12 Apr 2013
10.9734/BJAST/2014/3036Abstract
The degradations induced by the external conditions are ordered by defining several classes of exposure for the corrosion risk, depending on the environmental actions and concrete work conditions. Minimal concrete covers requirements are associated with these classes. Among these classes, there is that corresponding to the corrosion induced by carbonation (XC), which applies to the reinforced concrete exposed to the air and moisture The aim of this paper is the evaluation of carbonation time (T1), which is the time necessary so that the face of carbonation arrives until the reinforcement from a probabilistic analysis. Monte Carlo simulations are realized under the assumption that the Water /Cement ratio, the relative humidity, and the pressure of the carbonic gas on the surface of the concrete are random variables with a log-normal probability distribution.
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