Communication Dans Un Congrès Année : 2023

Numerical modelling of ultrasonic wave propagation in concrete using embedded sensors

Résumé

Due to the importance of reinforced concrete for civil engineering structures, monitoring the state of concrete over time has become a special interest in non-destructive testing. Although many different studies have been performed on concrete monitoring, it is still a challenge to have valid information on the first centimeters of the structure. An ultrasonic measurement system design is proposed using pairs of ultrasound sensors that are embedded inside the concrete structures during the construction phase. This system is designed to contribute to the local evaluation of the most relevant indicators in the first 20 cm of the structure: compressive strength, Young’s modulus, porosity, and water content. The design involves the development of transmitter and receiver probes embedded in concrete to measure, as a function of depth, the evolution of two parameters: ultrasonic velocity and attenuation. A frequency pulse is sent by the emitter, and the receiver records the wave after propagation. Based on the recorded signal at regular time intervals, information about the micro-structure of concrete can be monitored. A set of sensors with frequencies from 50 kHz to 200 kHz is currently being tested in small concrete samples to define a system suitable for large full-scale mock-ups. To have accurate information, the uncertainties generated by the heterogeneity on the observables must be quantified, evaluated and compared to perturbations due to indicator’s properties change.

Fichier principal
Vignette du fichier
Nuccon_2023_Hariri.pdf (481.27 Ko) Télécharger le fichier
Origine Fichiers éditeurs autorisés sur une archive ouverte
Licence

Dates et versions

hal-04913656 , version 1 (31-07-2025)

Licence

Identifiants

  • HAL Id : hal-04913656 , version 1

Citer

Rouba Hariri, Vincent Garnier, Jean François Chaix, Odile Abraham. Numerical modelling of ultrasonic wave propagation in concrete using embedded sensors. NDE NucCon 2023 - International Conference on Non-destructive Evaluation of Concrete in Nuclear Applications, VTT Technical Research Centre of Finland; Aalto University; BAM - Bundesanstalt Für Materialforschung und -prüfung, Jan 2023, Espoo, Finland. pp.296-306. ⟨hal-04913656⟩
198 Consultations
126 Téléchargements

Partager

  • More