Ultrasonic tomography is a non-destructive testing method that allows for the internal
visualization of concrete structures without causing any damage. This technique is widely …

Nowadays, with the aging of the bridges and the advancements in technology, load testing
has emerged as an effective method to assess existing concrete bridges with missing …

An embedded PZT-based sensor for monitoring internal damage in concrete is presented.
An experimental program for producing controlled increments in levels of stress and …

We present work to characterize cracking damage in concrete caused by alkali-silica
reactivity distress. We apply contactless ultrasonic scan inspection, exploiting Rayleigh …

Ultra-high-performance fiber-reinforced concrete (UHP-FRC) has a high compressive
strength of 22 to 30 ksi (152 to 210 MPa) and a substantial shear strength as well as …

Fusion-based imaging using ground-penetrating radar (GPR) and ultrasonic echo array
(UEA) was employed to track damage progression in the columns of two full-scale reinforced …

This paper shows the complementarity of two nonlinear ultrasonic imaging methods to
characterize closed macro cracks in concrete. A time reversal mirror is used to locally probe …

The water–cement ratio significantly affects the mechanical properties of concrete with
changes in porosity serving as a key indicator of these properties, which are correlated with …

We demonstrate the enhancement of contact nonlinear ultrasonic testing by implementing
the 1-D phononic crystal layers. Nonlinear ultrasonic testing (NLUT) can detect sub …

Non-destructive ultrasonic evaluation (NDE) is commonly used for assessment of civil
infrastructure and characterization of construction materials. It is an efficient technique that …