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

作     者：Minju Kang Jinyoung Hong Taemin Lee Doyun Kim Hajin Choi Minju Kang;Jinyoung Hong;Taemin Lee;Doyun Kim;Hajin Choi

作者机构：School of ArchitectureSoongsil UniversitySeoul 06978Republic of Korea 

出 版 物：《Earthquake Engineering and Engineering Vibration》 (地震工程与工程振动（英文刊）)

年 卷 期：2024年第23卷第3期

页      面：525-535页

核心收录：

学科分类：08[工学] 081402[工学-结构工程] 0814[工学-土木工程] 

基　　金：National Research Foundation of Korea(NRF)Funded by the Korean Government(MSIT)under Grant Nos.RS-2023-00210317 and 2021R1A4A3030117 the Digital-Based Building Construction and Safety Supervision Technology Research Program Funded by the Ministry of Land,Infrastructure,and Transport of the Korean Government under Grant No.RS-2022-00143493 the Korea Institute of Civil Engineering and Building Technology(KICT)of the Republic of Korea,Project under Grant No.2023-0097 

主　　题：GPR concrete defect electromagnetic wave relative permittivity non-destructive testing(NDT) 

摘      要：This study aims to develop a damage-detection algorithm based on the electromagnetic wave properties inside a reinforced concrete *** proposed method involves employing two algorithms based on data measured using ground-penetrating radar—a common electromagnetic wave method in civil *** 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 *** proposed method was verified through a finite difference time-domain-based numerical analysis and a testing slab with artificial *** 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 *** study has practical significance in scanning structures over a large area more quickly than other non-destructive testing methods,such as ultrasonic methods.