NDT & E International 10/2025
Elastic wave dispersion for heterogeneity characterization in cement-based media
Authors: Contents:- The study uses elastic wave dispersion to analyze heterogeneities in cement-based materials.
- XARION’s air-coupled, broadband, resonance-free Optical Microphone was applied, capturing ultrasonic dispersion with exceptional clarity – without contact to the specimen.
- The analysis of the recorded waves allows identification of regions with differing mechanical properties, void sizes, and microstructural damage.
- The results demonstrate how wave dispersion correlates with material heterogeneity, providing a quantitative basis for characterization and new possibilities for concrete diagnostics.