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학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2015.3
- 수록면
- 22 - 33 (12page)
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초록· 키워드
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Chloride ions in RC (Reinforced Concrete) structures can cause very severe corrosion in reinforcement steel. It is generally informed that chloride penetration can be considerably accelerated by enlarged chloride diffusion due to cracks. These cracks play a role in main routes through which chloride ions penetrate into the concrete, and also lead to steel corrosion in RC structures exposed to chloride attack, such as port and ocean structures. In this paper, field survey including evaluation of crack and chloride concentration distribution in concrete is performed to investigate an effect of crack on chloride diffusion. The service life of cracked concrete exposed to the marine environmental condition is estimated considering the crack effect on chloride diffusion. For this purpose, diffusion coefficients in cracked concrete are obtained based on the field survey. Using the relationship between diffusion coefficients in the cracked concrete and the crack widths, service life of the cracked concrete is predicted in a probabilistic framework. A bimodal distribution with two peaks, consisting of a weighted sum of two normal distributions is introduced to describe chloride diffusion of the concrete wharf with crack.
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참고문헌 (37)
참고문헌 신청
Andrade, C. / 1993 / Calculation of chloride diffusion coefficients in concrete from ionic, migration measurements / Cem. Conc. Res 23:724~742
Broomfield, J.P / 1997 / Corrosion of steel in concrete: understanding, investigation and repair / E&FN
Bungey, J.H / 1994 / Testing of concrete in structures / Chapman & Hall
CEB / 1989 / General Task Group 20, Durable concrete structure - Design Code
CEB-FIP / 2006 / Model code for service life design / International Federation for Structural Concrete 5(6):38~39
Broomfield, J.P / 1997 / Corrosion of steel in concrete: understanding, investigation and repair / E&FN
Bungey, J.H / 1994 / Testing of concrete in structures / Chapman & Hall
CEB / 1989 / General Task Group 20, Durable concrete structure - Design Code
CEB-FIP / 2006 / Model code for service life design / International Federation for Structural Concrete 5(6):38~39
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UCI(KEPA) : I410-ECN-0101-2017-531-001369190