Numerical Prediction of Chloride Penetration in Concrete Exposed to a Marine Environment at Tide
- Title
- Numerical Prediction of Chloride Penetration in Concrete Exposed to a Marine Environment at Tide
- Author
- 안기용
- Keywords
- CEMENT-BASED MATERIALS; DIFFUSION; TRANSPORT; SIMULATION; CORROSION; MODEL
- Issue Date
- 2018-04
- Publisher
- HINDAWI LTD
- Citation
- ADVANCES IN MATERIALS SCIENCE AND ENGINEERING, v. 2018, Article no. 7591576
- Abstract
- Reinforced concrete structures under cyclic exposure to the corrosive environment such as the tidal zone as a part of marine
structure entail the higher risk of steel corrosion. In this paper, chloride penetration in concrete exposed to the tidal zone was
predicted using a combined moisture and chloride transport model. For the analysis of moisture transport, pore size distribution
in concrete was determined from the experimental observation and used to determine the moisture permeability and degree of
saturation. ,en, the chloride profile through nonsaturated concrete cover was calculated by applying the moisture distribution
along the penetration depth to the chloride convection and diffusion model. To assess sensitivity of the service life to the
environment and concrete mix conditions, this study used three types of tide levels and water to cement ratios in the simulation.
Under 10 years of tidal exposure condition, the minimum required cover depth at which the threshold chloride concentration
reaches on the steel embedment increases only about 1.13 times as the tide level increases from the minimum to the highest while
that for the w/c ratio increases about 1.69 times.
- URI
- https://www.hindawi.com/journals/amse/2018/7591576/abs/https://repository.hanyang.ac.kr/handle/20.500.11754/80994
- ISSN
- 1687-8434
- DOI
- 10.1155/2018/7591576
- Appears in Collections:
- COLLEGE OF ENGINEERING SCIENCES[E](공학대학) > CIVIL AND ENVIRONMENTAL ENGINEERING(건설환경공학과) > Articles
- Files in This Item:
There are no files associated with this item.
- Export
- RIS (EndNote)
- XLS (Excel)
- XML