KCI Concrete Journal

한국콘크리트학회 (Korea Concrete Institute)
권호 표지

Finite Element Analysis of Chloride Ion Intrusion into Coastal Concrete Structure

  • Kim, Eun-Kyum (Dept. of Civil Engineering, Seoul National University of Technology) ;
  • Shin, Chee-Bur (Dept. of Chemical Engineering, Ajou University) ;
  • Yeau, Kyong-Yun (Research Center for Construction Technology, Seoul National Univ. of Technology)
  • 발행 : 1999.07.01
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초록

In order to predict the onset of the corrosion of steel bars in concrete, a mathematical model was presented to observe the diffusion of chloride ion in aqueous phase, the adsorption and desorption of chloride ions to and from the surface of solid phase of concrete, and the chemical reaction or chloride ions with solid phase. The finite element method was employed to carry out the numerical analysis. The chlorides enetrating through the wall of the concrete structure from the external environment and the chlorides contained in the concrete admixture were confirmed to be two important factors to determine the onset of the corrosion of steel bars.

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참고문헌

  1. ACI MAT.J. v.88 no.5 Guide to durable concrete ACI committee 201
  2. Chem. Eng. Sci. v.51 no.4 Physicochemical process and mathematical modeling of concrete chlorination Papadakis, V.G.;Faridis, M.N.;Vayenas, C.G.
  3. Concrete: Structure, Properies and Material (2nd ed.) Mehta, P.K.;Monterio, P.J.M.
  4. ACI SP 126 v.1;2 Durablity of Concrete Malhotra, V.M.(ed.)
  5. Concrete International v.16 no.4 Steel corrosion in concrete structures exposed in Norweigian marine environment Gjφrv, O.E.
  6. Comput. Meth. Appl. Mech. Eng. v.18 no.18 Implicit-explicit finite elements in nonlinear transient analysis Hughes, T.J.R.;Pister, K.S.;Taylor, R.L.