Oral Presentation

Volume Title: 3rd International Conference on Civil Engineering: Development & Sustainability

¹Manar Zakaria Mahmoud Omr ; ²Shehata E Abdel Raheem; ²MOhamed K M Nafadi

¹Civil engineer, Faculty of engineering, Assuit University

²ivil Engineering Dept., Faculty of Engineering, Assiut University, Assiut, Egypt

This paper evaluates the Ultrasonic Pulse Velocity (UPV) test of concrete structures as specified by different standards. A comparison will be performed between the Egyptian and relevant international standards, including British, American, Canadian, Japanese, Indian, and Russian standards. The comparison will evaluate the handling of such standards of all parameters affecting the accuracy of the test, such as wave path Length, apparatus frequency, transit time, reinforcement, temperature correction, and size effect. In addition, the paper will present the procedures for calculating longitudinal pulse velocity and assessing concrete properties accordingly. Despite the fact that the measurement of ultrasonic longitudinal wave velocity has a similar basis among the standards, it is shown that there are differences in the methods recommended by various countries. Furthermore, other parameters are believed to affect the test accuracy but are not globally considered in different standards. The outcomes of this study are anticipated to present recommendations to the users on practicing the UPV testing of concrete structures.

Non-destructive testing methods (NDT); concrete; Ultrasonic Pulse Velocity (UPV) testing; Egyptian Standard specifications; Quality of concrete