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학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
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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.17 No.2
- 발행연도
- 2016.1
- 수록면
- 189 - 199 (11page)
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초록· 키워드
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Chloride penetration is considered as a most crucial factor for the determination of the service life of concrete. A lot of experimental tools for the chloride penetration into concrete have been developed, however, the mechanism was based on only diffusion, although permeability is also main driving forces for the chloride penetration. Permeation reacts on submerged concrete impacting for short to long term durability while capillary suction occurs on only dried concrete for very early time. Furthermore, hydrostatic pressure increases in proportional to measured depth from the surface of water because of the increasing weight of water exerting downward force from above. It is thought, therefore, that the water pressure has a great influence on the chloride penetration and thereby on the service life of marine concrete.In this study, new experiment is designed to examine the effect of water pressure on chloride penetration in concrete quantitatively. As an experiment result, pressure leaded a quick chlorides penetration by a certain depth, while diffusion induced chlorides to penetrate inward slowly. Therefore, it was concluded that chloride should penetrates significantly by water pressure and the phenomena should be accelerated for concrete exposed to deep sea. The research is expected as a framework to define the service life of submerged concrete with water pressure and compute water permeability coefficient of cementitious materials.
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참고문헌 (21)
참고문헌 신청
2011 / AASHTO T 260-97, Standard method of test for sampling and testing for chloride ion in concrete and concrete raw materials
Bamforth, P. B. / 2004 / Enhancing reinforced concrete durability
Baroghel-Bouny, V. / 2007 / AgNO3 spray tests:advantates, weaknesses, and various applications to quantify chloride ingress into concrete, part I nonsteady-state diffusion tests and exposure to natural conditions / Mater. Struct 40(8):759~781
Basheer, L. / 2001 / Assessment of the durability of concrete from its permeation properties : a review / Constr. Build. Mater 15(2):93~103
Castellote, M / 2006 / Round-robin test on method for determining chloride transport parameters in concrete / Mater. Struct 39(10):955~990
Bamforth, P. B. / 2004 / Enhancing reinforced concrete durability
Baroghel-Bouny, V. / 2007 / AgNO3 spray tests:advantates, weaknesses, and various applications to quantify chloride ingress into concrete, part I nonsteady-state diffusion tests and exposure to natural conditions / Mater. Struct 40(8):759~781
Basheer, L. / 2001 / Assessment of the durability of concrete from its permeation properties : a review / Constr. Build. Mater 15(2):93~103
Castellote, M / 2006 / Round-robin test on method for determining chloride transport parameters in concrete / Mater. Struct 39(10):955~990
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