The ultrasonic pulse echo technique applied to concrete and steel structures

Kayous, Malik; Proceq; Switzerland

Corbett, D.; Proceq SA; Switzerland
Kayous, M.; Proceq SA; Switzerland
Tsalicoglou, I.; Proceq SA; Switzerland

ID: ECNDT-0470-2018
Download: PDF
Session: Civil Infrastructure-Conrete 2
Room: J1
Date: 2018-06-13
Time: 11:10 - 11:30

Depending on the information required, various technologies must be applied when investigating reinforced concrete structures. In particular, there are specific types of fault such as delaminations and voids that are most suitably detected using ultrasonic techniques. However, it is quite often the case that access to such structures is limited to a single side, making traditional ultrasonic techniques impossible. Also, traditional ultrasonic techniques do not provide depth information about the location of internal defects, unless a huge amount of measurements are made and sophisticated software is used to create tomograms. The ultrasonic pulse echo technique enables users to collect this information even when access is limited to a single side. The major drawbacks to the technique have been the effort required in making scans when compared to electromagnetic techniques, and the subjective nature of data interpretation. Recent research carried out has sought to use intelligent algorithms to improve speed and precision of large-scale scanning, and also to rely on artificial intelligence for object recognition in a scan. Furthermore, a method is proposed to use information collected with other technologies to increase depth accuracy. The current state of this research is presented in this paper with real-world examples, showing achievements to date and indicating where future development is required