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Article Dans Une Revue Construction and Building Materials Année : 2016

Concrete cover characterisation using dynamic acousto-elastic testing and Rayleigh waves

Résumé

This paper presents the application of surface Rayleigh waves in nonlinear dynamic acousto-elastic testing for the nondestructive evaluation of the concrete cover. Numerous physical phenomena, such as conditioning and slow dynamics, characterising the dynamic non-classical nonlinear elastic behaviour of many types of micro-heterogeneous solids, were observed in concrete. Rayleigh waves were used as probing waves to evaluate the effect of local property changes in a concrete cover. The proposed method was validated for two typical problems of concrete durability, in a case of thermal damage – distributed micro-damage – and in a case of carbonation – surface problem with determination of the carbonation depth. In both cases, the results showed that the relative variation as a function of material changes of the nonlinear parameters was much higher than that of the ultrasonic pulse velocity.
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Dates et versions

hal-03575258 , version 1 (15-02-2022)

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  • HAL Id : hal-03575258 , version 1

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Q.A. Vu, V. Garnier, C. Payan, Jean François Chaix, M. Lott, et al.. Concrete cover characterisation using dynamic acousto-elastic testing and Rayleigh waves. Construction and Building Materials, 2016. ⟨hal-03575258⟩
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