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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 저널정보
- 한국계산역학회 Computers and Concrete, An International Journal Computers and Concrete, An International Journal Vol.22 No.3
- 발행연도
- 2018.1
- 수록면
- 319 - 326 (8page)
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초록· 키워드
오류제보하기
RC (Reinforced Concrete) members are always subjected to loading conditions and have construction joints when constructed on a big scale. Service life for RC structure exposed to chloride attack is usually estimated through chloride diffusion test in sound concrete, however the test is performed without consideration of effect of loading and joint. In the present work, chloride diffusion coefficient is measured in concrete cured for 1 year. In order to evaluate the effect of applied load, cold joint, and mineral admixtures, OPC (Ordinary Portland Cement) and 40%-replaced GGBFS (Ground Granulated Blast Furnace Slag) concrete are prepared. The diffusion test is performed under loading conditions for concrete containing cold joint. Investigating the previous test results for 91 days-cured condition and the present work, changing diffusion coefficients with applied stress are normalized considering material type and cold joint. For evaluation of service life in RC continuous beam with 2 spans, nonlinear analytical model is adopted, and service life in each location is evaluated considering the effects of applied stress, cold joint, and GGBFS. From the work, varying service life is simulated under various loading conditions, and the reduced results due to cold joint and tensile zone are quantitatively evaluated. The effect of various conditions on diffusion can provide more quantitative evaluation of chloride behavior and the related service life.
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참고문헌 (33)
참고문헌 신청
Abe, Y. / 1999 / Result of reference review on crack width effect to carbonation of concrete / Proc. Symp.: Rehab. Concrete Struct. 1(1):7~14
2001 / ACI 224.3R-95, Joints in Concrete Construction :389
Arya, C. / 1990 / Assessment of four methods of determining the free chloride content of concrete / Mater. Struct. 23(5):319~330
Banthia, N. / 2005 / Permeability of concrete under stress / Cement Concrete Compos. 35(9):1651~1655
Broomfiled, J.P. / 1997 / Corrosion of Steel in Concrete: Understanding, Investigation and Repair / E&FN
2001 / ACI 224.3R-95, Joints in Concrete Construction :389
Arya, C. / 1990 / Assessment of four methods of determining the free chloride content of concrete / Mater. Struct. 23(5):319~330
Banthia, N. / 2005 / Permeability of concrete under stress / Cement Concrete Compos. 35(9):1651~1655
Broomfiled, J.P. / 1997 / Corrosion of Steel in Concrete: Understanding, Investigation and Repair / E&FN
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