Evaluation de la peau du béton à l'aide de la technique des ondes ultrasonores de surface - Université Polytechnique des Hauts-de-France Access content directly
Journal Articles Annales du Bâtiment et des travaux publics Year : 2014

Evaluation de la peau du béton à l'aide de la technique des ondes ultrasonores de surface

Abstract

Concrete cover degradation is induced by aggressive agents in ambiance, chemicals, moisture, or temperature variations. Due to these degradations, a thin inhomogeneous surface layer usually appears. Its porosity and its elastic modulus are different from the properties of deeper sound concrete. Therefore, the on-site nondestructive evaluation of concrete cover is important to monitor the integrity of concrete structures and prevent irreversible damage. In this paper the methodology applied is the technique, classical for geophysics, called Multichannel Analysis of Surface Waves (MASW). It is used as the NDT tool to characterize the depth and elastic modulus of concrete cover. The procedure consists in generation and reception of surface waves, using the non-contact transducers which move automatically. Then the phase velocity dispersion characteristic V(f) is extracted and inverted using the CLOUD inversion software in order to obtain the variation of shear wave velocity as a function of depth.
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Dates and versions

hal-03589192 , version 1 (25-02-2022)

Identifiers

  • HAL Id : hal-03589192 , version 1

Cite

Bogdan Piwakowski, Jean-Paul Balayssac, Géraldine Villain, Vincent Garnier, Mariusz Kaczmarek, et al.. Evaluation de la peau du béton à l'aide de la technique des ondes ultrasonores de surface. Annales du Bâtiment et des travaux publics, 2014, Partie 1 - Évaluation non destructive des matériaux, 66 (1-3), pp.83-88. ⟨hal-03589192⟩
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