Analytical Study on the Chloride Ion Permeation of Reinforced Concrete Repaired by Finishing Material


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When the RC structure degraded in sea environment, chloride ion is one of the most important factors of degradation. Therefore, the purpose of this analytical study is measuring diffusion coefficient of patching repair material and the structure which repaired with patching repair material by RCPT. Also with this experimental result, Finite Element Method (FEM) is used for determining service year of building and concentration of chloride ion in the structure material. As the result of RCPT, diffusion coefficient of patching repair material is 0.44×10-8cm2/sec, which is 18.7% of concrete (3.18×10-8cm2/sec). Meanwhile, as the result of FEM, patching repair material is effective for prevent chloride ion. When service year of normal concrete structure is 16years, on the other hand, the structure recovered 10mm of patching repair material will take 49 years to its service year. Furthermore, the result derived from equation given from JSCE predicts service year of the structure is little bit less than FEM.



Key Engineering Materials (Volumes 385-387)

Edited by:

H.S. Lee, I.S. Yoon and M.H. Aliabadi






S. Y. Yun et al., "Analytical Study on the Chloride Ion Permeation of Reinforced Concrete Repaired by Finishing Material", Key Engineering Materials, Vols. 385-387, pp. 677-680, 2008

Online since:

July 2008




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[2] H.S. Lee and W.J. Lee: A Prediction of the Durability life at RC Structure with Surface Finishing Materials in Marine Environment, AIK Journal, Vol. 22(1) (2006), p. pp.119-126.

[3] L. Tang and L.O. Nilsson: Rapid Determination of the Chloride Diffusivity in Concrete byApplying an Electrical Field, ACI MATERIALS Journal, Jan. -Feb., (1992), p. pp.49-53.

[4] Japan Society of Civil Engineers(JSCE): Construction guideline of surface protection method, JSCE publishing, Japan, Tokyo (2005), p. pp.113-114.

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