Surface-breaking cracks in concrete pose a significant threat to the durability of built
structures. They create pathways for an accelerated moisture intrusion, and the transport of …

Corrosion of reinforcement in concrete is a billion dollar problem spread across the globe.
Early detection of corrosion-induced damage preempts weakening of the structure and …

Delaminations, cracks and other defects in engineered structures often lie close to the
theoretical resolution limit for ultrasonic waves. While ultrasonic waveform tomography has …

Corrosion is a serious affliction for reinforced concrete (RC) structures and the development
of advanced inspection techniques is crucial for maintaining serviceability and durability. In …

Two different techniques for ultrasonic imaging of concrete are presented, namely a
weighted sum technique and a statistical technique. The techniques utilize both the …

Although ultrasonic transducers that emit horizontal shear waves are widely used in
practice, no investigation has been conducted to study the attenuation of shear waves in …

Engineered barriers are a key element to enable safe nuclear waste disposal. One method
currently under research for their construction is magnesia concrete applied in a shotcrete …

Ultrasonic time-of-flight (ToF) measurements enable the non-destructive characterization of
material parameters as well as the reconstruction of scatterers inside a specimen. The time …

In the framework of non-destructive-testing advanced seismic imaging techniques have
been applied to ultrasonic echo data in order to examine the integrity of an engineered test …

Ultrasonic echo testing is widely used in non‐destructive testing in civil engineering to
investigate concrete structures, to measure thickness, and to locate and characterise built‐in …