Communication Dans Un Congrès Année : 2024

Profiling the thermal damage gradient in concrete using linear and non-linear ultrasonics

Résumé

In this paper, several ultrasonic testing methods are employed to nondestructivelymeasure gradients in elastic properties within concrete and mortar slabs, induced by varying amount of exposure to elevated temperatures. The slabs are subjected to two distinct heat exposures, carefully chosen to create different gradients within the first few centimeters below the surface. Linear ultrasonic surface wave and refracted P wave are employed. Additionally, we employ NRUS (nonlinear resonant ultrasound spectroscopy) to test slices extracted from the different depths within the slabs. The ultrasonic test results are benchmarked and interpreted in relation to a suite of other multiphysical measurements (resistivity, capacity, temperature).

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Dates et versions

hal-04980473 , version 1 (06-03-2025)

Identifiants

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Massina Fengal, Pierric Mora, C Payan, Parisa Shokouhi, Xavier Dérobert, et al.. Profiling the thermal damage gradient in concrete using linear and non-linear ultrasonics. Inter.noise 2024, Aug 2024, Nantes, France. pp.1786-1793, ⟨10.3397/IN_2024_3078⟩. ⟨hal-04980473⟩
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