Approaches and limitations of Non-Destructive Testing for evaluating bituminous concrete using wave propagation: A review from the laboratory test to in situ case study
Résumé
This work addresses the challenges of using non-destructive testing (NDT) methods based on mechanical wave propagation as alternatives to conventional destructive tests for evaluating the mechanical behavior of bituminous concrete materials and structures. Given the viscoelastic nature of these materials, the paper first outlines the fundamental principles of their mechanical behavior and the key parameters to be identified. The study then focuses on two categories of NDT techniques involving wave propagation: laboratory methods, such as impact resonance testing and ultrasonic excitation; and in-situ methods, referring to geophysical techniques. Finally, the paper presents a comprehensive literature review of these NDT applied to bituminous concrete and discusses their respective advantages and limitations.