Using Non-Destructive Methods for the Characterization of Concrete in Aggressive Environments

Abstract:

The durability of reinforced concrete structures is reduced by the chloride penetration and susceptibility of the reinforcement to chloride induced corrosion which is considered a critical physic-chemical case. As the financial impact of the phenomena is very important, it seems essential to determine it influence on strength of reinforced concrete elements subjected to aggressive environnement such us the presence of chlorides when exposed to marine environnement. As such, the determination of the ion concentrations of chlorides profile within the cement matrix is of major importance, it tool to estimate the time required by the chlorides to reach the reinforcements in sufficient quantity to depassivate the steel.

• Periodical: International Journal of Engineering Research in Africa (Volume 15)
• Pages: 62-70
• DOI: https://doi.org/10.4028/www.scientific.net/JERA.15.62
• Online since: April 2015
• Authors: Khial Nassima*, Rachid Mehaddene
• Keywords: Armatures, Chlorides, Coating, Corrosion, Reinforced Concrete, Ultrasonic Waves

References

[1] VERVISCH-FORTUNÉ Isabelle, (09- 2009), « Sensibilité de la technique d'émission acoustique à la corrosion des armatures dans le béton », PhD thesis, Toulouse III University – Paul Sabatier.

[2] FNINE Abdelilah, (03-12-2006), «Caractérisation mécanique des premiers centimètres du béton avec des ondes de surface», PhD thesis, of sciences and technologies of Lille' university – Lille 1.

[3] David CONCIATORI, (2005), « effet du microclimat sur l'initiation de la corrosion des aciers d'armature dans les ouvrages en béton arme », PhD thesis, ETH Lausanne, institute structures, section génie civil engineering section.

[4] Notice n° PM 08-01, (04- 2008), «Guide d'utilisation du béton en site maritime», Maritime Center and River Technical Studies, Ecologie Ministery, Energy, Devloppement Sustainable and Spatial Planning, France.

[5] ARMY TM 5-809-10-2. Appendix E, (1998).

[6] Association Française du Génie Civil, [AFGC], (11-2003), «Réhabilitation du béton armé dégradé par la corrosion » scientific and technical paper.

[7] J. Rhazi, S. Laurens, J.P. Balayssac, G. Ballivy (06-2002), « Evaluation de l'état de santé des structures en béton par les technologies acoustiques et électromagnétiques », 4e Conférence of spécialized engineering structures of canadian society fof civil engineering, Montréal, Québec, Canada, june (2002).

DOI: 10.1139/l95-125