Title: Compressive strength testing of epoxy coated reinforced concrete based on ultrasonic SH wave

Authors: Yu Zhang; Huanan Liang; Lei Jian

Addresses: Luohe Institute of Technology, Henan University of Technology, Luohe, 462000, Henan, China ' Department of Construction Engineering, Luohe Institute of Technology, Henan University of Technology Luohe, 462000, Henan, China ' Yancheng District Finance Bureau of Luohe City, 462000, China

Abstract: In order to overcome the problems of low signal strength and significant difference between the measured and actual compressive strength values in traditional epoxy coated reinforced concrete testing methods, a new compressive strength testing of epoxy coated reinforced concrete based on ultrasonic SH wave is proposed. Firstly, prepare epoxy coated reinforced concrete specimens. Secondly, ultrasonic signals are emitted to the epoxy coated reinforced concrete specimens, and the concrete data signals are captured using ultrasonic SH wave. Finally, the least squares method is used to fit the concrete data, and the compressive strength value of epoxy coated reinforced concrete is calculated based on the data fitting results to obtain relevant testing results. The experimental results show that the maximum signal strength under the application of the proposed method is 58.7 W/m², and the compressive strength testing value of epoxy coated reinforced concrete is basically consistent with the actual value.

Keywords: ultrasonic SH wave; epoxy coated; reinforced concrete; compressive strength testing; least squares method.

DOI: 10.1504/IJMMP.2025.143419

International Journal of Microstructure and Materials Properties, 2025 Vol.18 No.1/2, pp.1 - 18

Received: 05 Dec 2023
Accepted: 07 Aug 2024
Published online: 19 Dec 2024 *

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