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Evaluation of internal void related defects in reinforced concrete slab using electromagnetic wave properties

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This study aims to develop a damage-detection algorithm based on the electromagnetic wave properties inside a reinforced concrete structure.The proposed method involves employing two algorithms based on data measured using ground-penetrating radar—a common electromagnetic wave method in civil engineering.The possible defect area was identified based on the energy dissipated by the damage in the frequency-wavenumber domain,with the damage localized using the calculated relative permittivity of the measurements.The proposed method was verified through a finite difference time-domain-based numerical analysis and a testing slab with artificial damage.As a result of verification,the proposed method quickly identified the presence of damage inside the concrete,especially for honeycomb-like defects located at the top of the rebar.This study has practical significance in scanning structures over a large area more quickly than other non-destructive testing methods,such as ultrasonic methods.

GPRconcrete defectelectromagnetic waverelative permittivitynon-destructive testing(NDT)

Minju Kang、Jinyoung Hong、Taemin Lee、Doyun Kim、Hajin Choi

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School of Architecture,Soongsil University,Seoul 06978,Republic of Korea

National Research Foundation of Korea(NRF)Funded by the Korean Government(MSIT)National Research Foundation of Korea(NRF)Funded by the Korean Government(MSIT)Digital-Based Building Construction and Safety Supervision Technology Research Program Funded by the Ministry of Land,InfrasKorea Institute of Civil Engineering and Building Technology(KICT)of the Republic of Korea,Project

RS-2023-002103172021R1A4A3030117RS-2022-001434932023-0097

2024

10.1007/s11803-024-2253-9

地震工程与工程振动(英文版)
中国地震局工程力学研究所

地震工程与工程振动(英文版)

EI
影响因子：0.476
ISSN：1671-3664
年,卷(期)：2024.23(3)
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