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British Journal of Applied Science & Technology, ISSN: 2231-0843,Vol.: 3, Issue.: 3 (July-September)


Incidence of the Randomness of the Most Influential Parameters on the Reinforced Concrete Carbonation Time


A. Badaoui1*, M. Badaoui2 and F. Kharchi3

1Ecole Nationale Supérieure des Travaux Publics, Cité Sidi Garidi Kouba, Algiers, Algeria.
2FCSSI (France).
3Université des Sciences et de la Technologie Houari Boumedienne, Laboratoire Bâti dans l’environnement, BP 32 El Alia, Bab Ezzouar, 16111, Algiers, Algeria.

Article Information


(1) Dr. Marko Likon, Insol Ltd., Cankarjeva 16a, 6230 Postojna, Slovenia.


(1) M. C. Nataraja, Sri Jayachamarajendra College of Engineering, India.

(2) Juana María Miranda Vidales, Instituto de Metalurgia, Universidad Autónoma de San Luis Potosí, México.

Complete Peer review History: http://www.sciencedomain.org/review-history/1237


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.

Keywords :

Carbonation time; reinforced concrete; lognormal random variable; water /cement ratio; relative humidity; carbonic gas CO2.

Full Article - PDF    Page 524-535

DOI : 10.9734/BJAST/2014/3036

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