Inspection of Concrete/Steel/Concrete pipes by ultrasonic methods
Résumé
Non-destructive ultrasound methods are developed to detect holes and assess remaining steel thickness in
concrete/steel/concrete pipes affected by corrosion. Two types of methods are studied using bulk waves and guided
waves on different samples in laboratory. For bulk waves, we performed measurements through concrete using
pulse compression methods and a specific signature of holes in the steel layer was successfully identified. For
guided waves, a numerical study enables to identify a mode sensitive to the remaining steel thickness. These first
results are promising and complementary for the inspection of concrete/steel/concrete pipes on site
Origine : Fichiers produits par l'(les) auteur(s)
Licence : CC BY - Paternité
Licence : CC BY - Paternité