Proceedings of the Korean Institute of Building Construction Conference (한국건축시공학회:학술대회논문집)

The Korean Institute of Building Construction (한국건축시공학회)
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Harmonic evaluation of 100 kHz ultrasonic pulse transmitted through concrete exposed to high temperature

고온에 노출된 콘크리트를 투과한 100kHz 초음파의 고조파 평가

  • 황의철 (두산건설, 품질/기술연구소) ;
  • 박기홍 (두산건설, 품질/기술연구소) ;
  • 편수정 (충남대학교 건축공학과) ;
  • 유하민 (충남대학교 건축공학과) ;
  • 남정수 (충남대학교 건축공학과) ;
  • 김규용 (충남대학교 건축공학과)
  • Published : 2022.11.10
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Abstract

In this study, harmonics of 100 kHz ultrasonic pulse transmitted through concrete exposed to high temperature were evaluated. Concrete exposed to high temperatures deteriorates its mechanical properties. In ultrasonic pulse, the fundamental wave was attenuated by the deterioration of the concrete. In addition, it was possible to confirm the occurrence of harmonics. It is thought that the fundamental and harmonics of ultrasonic pulse greatly affected by the internal structure of concrete.

Keywords

Acknowledgement

이 논문은 2015년도 정부(미래창조과학부)의 재원으로 한국연구재단의 지원을 받아 수행된 기초연구사업임 (No. 2015R1A5A1037548).