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2009 Vol.11, Issue 1 Preview Page
Heat of hydration characteristics on high-performance concrete for large dimensional tunnel linings

대단면 터널 라이닝 적용 고성능 콘크리트의 수화열 특성

Kyung-Hwan Min1
,
Hyung-Chul Jung2
,
Jun-Mo Yang3
,
Young-Soo Yoon4*
민 경환1
,
정 형철2
,
양 준모3
,
윤 영수4*
1고려대학교 건축･사회환경공학부 박사과정
2고려대학교 건축･사회환경공학부 석사과정
3고려대학교 건축･사회환경공학부 박사과정
4고려대학교 건축･사회환경공학부 교수
*교신저자. *Corresponding Author. 
31 March 2009. pp. 37-45
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Abstract

In this study, experiments of development and application of 50 MPa high-performance concrete are performed for large dimensional tunnel linings. In order to produce 50 MPa high-performance concrete, eight optimal mixtures replacing with fly ash and ground granulated blast furnace slag up to 50 percent of type I Portland cement were selected then tests for mechanical properties and simple adiabatic temperature rise tests were carried out. And in order to assess the quantitative characteristics of heat of hydrations of developed mixtures, three mixtures that the type I Portland cement (OPC) and each one mixture of binary and ternary mixtures (BS30, F15S35) were reselected, then the adiabatic temperature rise tests and mock-up tests were performed. Consequently, the comparisons between the results of mock-up tests and finite element analysis can be enhanced the reliability of analyzing routines of thermal behaviours of the developed high-performance concrete.

Keywords
High-performance concrete
heat of hydration
fly ash
blast furnace slag
adiabatic temperature rise test
mock-up test

본 연구는 대형･대단면 터널 라이닝 구조물에 적용하기 위해 50 MPa급 고성능 콘크리트의 개발 및 적용을 위한 실험을 수행하였다. 이를 위해 플라이애쉬와 고로슬래그미분말을 1종 시멘트 단위량의 50%까지 치환한 8종의 배합을 선정하여, 8종의 배합의 역학적 특성에 관한 실험과 간이 단열온도 상승실험을 실시하였다. 또한 정량적인 평가를 위해 8종의 배합 중 1종 시멘트만을 사용한 배합(OPC) 및 2성분계 배합과 3성분계 배합중 각각 1종(BS30, F15S35)을 재선정하여 단열온도 상승실험과 Mock-up 실험을 수행하였다. 실물 부재 크기의 시험체의 수화열 측정결과는 유한요소해석과 비교하여 해석루틴의 신뢰도 향상을 기대할 수 있었다.

키워드
고성능 콘크리트
수화열
플라이애쉬
고로슬래그미분말
단열온도 상승실험
mock-up 실험
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Information
  • Publisher :Korean Tunneling and Underground Space Association
  • Publisher(Ko) :한국터널지하공간학회
  • Journal Title :Journal of Korean Tunnelling and Underground Space Association
  • Journal Title(Ko) :한국터널지하공간학회 논문집
  • Volume : 11
  • No :1
  • Pages :37-45
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