• Title/Summary/Keyword: mass concrete, adiabatic temperature rise, temperature distribution

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Hydration Heat Analysis of Mass Concrete Replacement of Low Heat Binder and CGS with Fine Aggregate (저발열 결합재 및 CGS를 잔골재로 치환한 매스콘크리트의 수화열 해석)

  • Han, Jun-Hui;Lim, Gun-Su;Chi, Il-Kyeung;Yoon, Chee-Whan;Han, Min-Cheol;Han, Cheon-Goo
    • Proceedings of the Korean Institute of Building Construction Conference
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    • 2021.05a
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    • pp.235-236
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    • 2021
  • This study evaluated temperature distribution through adiabatic temperature rising test and hydration heat Analysis as a performance verification to utilize CGS as a hydration heat reduction material for mass concrete when replacing it with fine aggregate. According to the analysis, the temperature difference between the center and the surface was the highest at about 30℃, followed by the CGS 50% at 26℃ and the low heat combiner FA 30% at 23℃.

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A Study on the Effects of Variables in Temperature Distribution of Mass Concrete (매스 콘크리트의 온도분포에 영향을 주는 주요 변수에 관한 연구)

  • 정철헌;강석화;정한중;박칠림;오병환
    • Magazine of the Korea Concrete Institute
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    • v.6 no.5
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    • pp.203-212
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    • 1994
  • The setting and hardening of concrete is accompanied by nonlinear temperature distribution caused by developing heat of cement hydration. This leads to tensile stresses that may exceed the strength of the young concrete, and cracks occur. In this present study, the heat of hydration characteristics are obtained from a study in which insulated concrete cubes were tested. Based on test results, concrete heat of hydration characteristics according to unit weight cement and flyash replacement quantity are determined, then employed in a numerical temperature analysis that consider both environmental interaction and concreting phases. The numerical results are performed by ADINA - T. The analytical results are in good agreement with experimental data.