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Prediction of Carbonation Progress for Concrete Structures Considering Change of Atmospheric Environment
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 Title & Authors
Prediction of Carbonation Progress for Concrete Structures Considering Change of Atmospheric Environment
Lee, Chang-Soo; Yoon, In-Seok;
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 Abstract
The most common deterioration cause of concrete structures in urban environment is carbonation. Recently, the concentration and temperature at atmosphere is sharply increased with time due to global warming phenomena. In this study, the climate scenario IS92a, which was suggested by the IPCC, is used to consider temperature and atmospheric concentration change in the model of service life prediction. The modified mathematical solution, which was based on the Fick`s 1st law of diffusion, was used to reflect concrete materials properties such as the degree of hydration of concrete with elapsed time, and important parameters, which associated with deterioration rate. The techniques of service life prediction are developed introducing the method of reliability and stochastic concept to consider microclimatic condition in Seoul, South Korea. From the result of service life prediction, concrete containing high W/C ratio is shown fast carbonation rate due to concentration increase. It is concluded that the deterioration of concrete structures due to carbonation is insignificant problem on the conditions that below W/C 55%, well curing concrete.
 Keywords
deterioration;carbonation of concrete;global warming phenomena;service life prediction;microclimatic condition;
 Language
Korean
 Cited by
1.
중성화와 염해를 고려한 콘크리트의 복합열화 예측,이창수;윤인석;

한국콘크리트학회논문집, 2003. vol.15. 6, pp.902-912 crossref(new window)
2.
이산화탄소 증가의 환경영향을 고려한 콘크리트 중성화에 관한 연구,박동천;송화철;

대한건축학회논문집:구조계, 2009. vol.25. 9, pp.125-132
3.
환경 조건에 따른 교량구조물의 탄산화 현황 및 내구수명 예측,김훈겸;김성보;

한국구조물진단유지관리공학회 논문집, 2010. vol.14. 4, pp.126-132
4.
콘크리트 구조물의 확률론적 탄산화 예측 모델 개발 및 내구성 해석,정현준;

대한토목학회논문집, 2010. vol.30. 4A, pp.343-352
5.
철근콘크리트 구조물의 탄산화 내구수명 산정에 미치는 영향요인에 관한 문헌적 연구,양재원;윤선영;조형규;송훈;이한승;

KIEAE Journal, 2010. vol.10. 3, pp.103-110
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