Journal of the Korea institute for structural maintenance and inspection (한국구조물진단유지관리공학회 논문집)

Korea Institute for Structural Maintenance Inspection (한국구조물진단유지관리공학회)
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Mechanical and Electrical Characteristics of Concrete Members Enlarged with Self-Sensing Cementitious Materials for Repair

자기감지형 보수재로 단면증타된 콘크리트 부재의 역학 및 전기적 특성

  • 이건철 (한국교통대학교 건축공학전공) ;
  • 임건우 (한국교통대학교 건축공학과 ) ;
  • 임창민 (한국교통대학교 건축공학과 ) ;
  • 홍성원 (한국교통대학교 안전공학전공 ) ;
  • 김영민 (한국교통대학교 건축공학과 )
  • Received : 2023.09.19
  • Accepted : 2023.10.16
  • Published : 2023.10.31
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Abstract

In this study, compressive strength and adhesion strength were measured as repair materials to evaluate the mechanical and electrical properties of compression and shear specimens with self-sensing repair materials. As a result of the experiment, the strength improvement rate of the compression test specimen was higher than the section enlargement area ratio, but the shear test specimen did not show an improvement in strength as much as the section enlargement area ratio. Compression experiments under load showed high correlation between FCR-Strain and FCR-Stress, confirming self-sensing performance. However, the shear test did not show as much correlation as the compression test. Accordingly, it is judged that the self-sensing repair material is suitable for the compression member on which the compression load acts in the building.

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Acknowledgement

이 논문은 2021년도 과학정보통신기술부 기초연구실지원사업(2021R1A4A2001964) / 2023년 한국연구재단의 중견연구자지원사업(NRF-2023R1A2C2006400)의 지원을 받아 수행되었습니다.

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