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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2012.12
- 수록면
- 153 - 161 (9page)
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This paper presents an integrated procedure to predict the temperature and moisture distributions in hardening concrete considering the effects of temperature and aging. The degree of hydration is employed as a fundamental parameter to evaluate hydro-thermal-mechanical properties of hardening concrete. The temperature history and temperature distribution in hardening concrete is evaluated by combining cement hydration model with three-dimensional finite element thermal analysis. On the other hand, the influences of both self-desiccation and moisture diffusion on variation of relative humidity are considered. The self-desiccation is evaluated by using a semi-empirical expression with desorption isotherm and degree of hydration. The moisture diffusivity is expressed as a function of degree of hydration and current relative humidity. The proposed procedure is verified with experimental results and can be used to evaluate the early-age crack of hardening concrete.
목차
Abstract
1. INTRODUCTION
2. HYDRATION MODEL OF PORTLAND CEMENT
3. VERIFICATION OF PROPOSED MODEL
4. CONCLUSION
REFERENCES
참고문헌 (19)
참고문헌 신청
Bazant ZP / 1972 / Nonlinear water diffusion in nonsaturated Concrete / Materials and Structures 5(25):3~20
Bentz, D P. / 1998 / Prediction of Adiabatic Temperature Rise in Conventional and High-Performance Concrete Using a 3-D Microstructural Model / Cement and Concrete Research 28(2):285~297
Cook, WD. / 1993 / Thermal Stresses in Large High-Strength Columns / ACI Materials Journal 89(1):61~68
김진근 / 1998 / Prediction of differential drying shrinkage in concrete / CEMENT AND CONCRETE RESEARCH 28(7):985~994
김진근 / 1999 / Moisture diffusion of concrete considering self-desiccation at early ages / CEMENT AND CONCRETE RESEARCH 29(12):1921~1927
Bentz, D P. / 1998 / Prediction of Adiabatic Temperature Rise in Conventional and High-Performance Concrete Using a 3-D Microstructural Model / Cement and Concrete Research 28(2):285~297
Cook, WD. / 1993 / Thermal Stresses in Large High-Strength Columns / ACI Materials Journal 89(1):61~68
김진근 / 1998 / Prediction of differential drying shrinkage in concrete / CEMENT AND CONCRETE RESEARCH 28(7):985~994
김진근 / 1999 / Moisture diffusion of concrete considering self-desiccation at early ages / CEMENT AND CONCRETE RESEARCH 29(12):1921~1927
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UCI(KEPA) : I410-ECN-0101-2014-540-000606219