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

  • 제17권5호
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  • Pages.105-112
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  • 2013
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  • 2234-6937(pISSN)
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  • 2287-6979(eISSN)
한국구조물진단유지관리공학회 (Korea Institute for Structural Maintenance Inspection)
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화해된 콘크리트의 잔존 강도 평가에 있어서 충격-반향 기법의 적용성

Applicability of Impact-Echo Method for Assessment of Residual Strength of Fire-Damaged Concrete

  • 투고 : 2013.03.28
  • 심사 : 2013.06.24
  • 발행 : 2013.09.30
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초록

이 연구에서는 화해된 콘크리트의 잔존 강도 평가에 있어서 충격-반향 기법의 적용성을 알아보고자 하였다. 화해를 모사하기 위해 콘크리트 실험체에 대한 표준 화재 온도 가열 시험을 실시하고, 화해된 콘크리트 실험체에 대해 충격-반향 응답 실험 및 압축 강도 실험을 실시하였다. 화해된 콘크리트의 충격-반향 응답 특성과 압축 강도의 잔존 특성을 분석하였으며, 또한 충격-반향 응답으로부터 구한 초음파 속도와 잔존 압축 강도와의 상관관계를 분석하였다. 연구 결과 화해된 콘크리트의 초음파 속도를 충격-반향 기법으로 신뢰성 있게 계측할 수 있으며, 또한 잔존 강도 평가에 충격-반향 기법을 유효하게 적용 가능하다는 것을 알 수 있었다.

In this study, the applicability of impact-echo method for assessment of residual strength of fire-damaged concrete is investigated. A series of standard fire test is performed to obtain fire-damaged concrete specimens. Impact-echo tests are executed on the specimens and the responses are analyzed. Compressive strengths of the fire-damaged concrete are evaluated and correlated with the ultrasonic wave velocities determined from the impact-echo responses. The effectiveness of impact-echo based ultrasonic wave velocity measurement for assessment of residual strength of fire-damaged concrete is discussed.

키워드

참고문헌

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피인용 문헌

  1. Characteristics of Elastic Wave in Fire damaged High Strength Concrete using Impact-echo Method vol.29, pp.1, 2015, https://doi.org/10.7731/KIFSE.2015.29.1.001
  2. The Colorimetry Method in Assessing Fire-Damaged Concrete vol.17, pp.6, 2013, https://doi.org/10.3151/jact.17.282
  3. Interpretation of Impact-Echo Testing Data from a Fire-Damaged Reinforced Concrete Slab Using a Discrete Layered Concrete Damage Model vol.20, pp.20, 2013, https://doi.org/10.3390/s20205838