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Determination of Thermal Cracking Index of Internal Restricted Mass Concrete Using a Numerical Analysis  

Seo, Ki-Young (부산대학교 토목공학과)
Kim, Hee-Sung (동서대학교 건축.토목시스템공학부)
Jin, Chi-Sub (부산대학교 토목공학과)
Publication Information
Journal of the Korea institute for structural maintenance and inspection / v.11, no.1, 2007 , pp. 57-67 More about this Journal
Abstract
The service life of concrete structure is to a great extent influenced by crack developed at early ages of concrete material. Especially, hydration heat is a main cause of thermal cracking at mass concrete structures. The thermal cracking of massive structure is analyzed of the thermal cracking index which was presented Concrete Standard Specifications. The thesis analyzed the thermal cracking index which considered various variable (cement type, height of casting, curing condition, concrete mixing temperature, the unit cement content) at internal restricted mass concrete. The analysis result is denoted increase and decrease rate of thermal cracking index whenever the variables change. The results is helped to understand thermal cracking every time structures is designed and constructed. And I think that it is useful economic and stable design of mass concrete structures.
Keywords
Mass Concrete; Hydration Heat; Thermal Cracking Index;
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1 김국한, "파이프 쿨링을 고려한 콘크리트 구조물의 수화열 해석에 관한 연구", 공학박사 학위논문, 2001.
2 정철헌, 강석화, 정한중, 박칠림, 오병환, "매스 콘크리트의 온도분포에 영향을 주는 주요 변수에 관한 연구", 한국콘크리트학회 논문집, 제6권, 제5호, 1994, pp.203-212.
3 ACI Committee 207, "Effect of Restraint, Volume Change, and Reinforcement on Cracking of Massive Concrete", Journal of ACI, ACI 207. 2R, 1996.
4 IGSHPA, "Closed-Loop/Ground-Source Heat Pump Systems : Installation Guide", 1988.
5 한국콘크리트학회, "콘크리트 표준 시방서", 2003.
6 ACI Committee 207, "Mass Concrete", Journal of ACI, ACI 207. 1R, 1996.
7 MIDAS, "MIDAS Analysis & Design", 2000.
8 최명성, 김운용, 우상균, 김진근, "양생조건.외기온도.비등효과를 고려한 콘크리트 외기대류계수의 결정", 한국콘크리트학회 논문집, Vol.17, No.4, 2005, pp.551-558.
9 이장화, "주변환경을 고려한 매스콘크리트의 온도이력해석", 공학박사 학위논문, 1995.
10 김진근, 노재호, 박연동, 한정호, 김훈, "시멘트 및 콘크리트의 수화발열 특성에 관한 연구", 한국콘크리트학회 논문집, 제7권, 제3호, 1995, pp.211-219.
11 Fermando, A. B., Mendes, P. A., and Mirambell, E., "Heat of Hydration Effects in Concrete Structures", ACI Materials Journal, Vol.89, No3, 1992, pp.139-148.
12 Pane, "Hydration Kinetics and Thermomechanics of Blended Cement System", degree of Doctor of Philosophy, 2001.
13 Hiromi Kawaraba, Tadao Kanokogi, and Tadaaki Tanabe, "Development of the FEM Program for the Analysis of Pipe Cooling Effects on the Thermal Stress of Massive Concrete", Transactions of JCI, Vol. 8, 1996, pp 125-130.