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Computers and Concrete
  Volume 5, Number 6, December 2008 , pages 545-558

Analysis on IBEM for consideration on reinforced concrete slab resistance
Je-Woon Kyung, Sung-Ho Tae, Han-Seung Lee and Sung-Bok Lee

    The corrosion of RC structures demonstrates very complicated forms of deterioration intermingled together but all pointing to a decrease in the durability of RC structures due to the corrosion of reinforcing bars. Until now, nondestructive techniques, such as half-cell potential and polarization resistance, have been widely available in the world. The former provides information on the probability of corrosion while the latter is associated with information concerning corrosion rates. Inversion by the boundary element method (IBEM) was developed for considering concrete resistivity. The applicability of the procedure was examined through a numerical analysis and electrolytic tests for RC slabs. A distribution in such concrete resistivity is relatively inhomogeneous including cracks on the surface of slabs. Regarding cracks in concrete, the relative coefficient of concrete resistance was introduced to perform its analysis. Further, the procedure will be developed to identify the corroded region visually using 3-D VRML.
Key Words
    half-cell potential; BEM; concrete resistivity; corrosion; corrosion area; VRML.
Je-Woon Kyung; Construction Division 1, Korea Institute of Construction & Transportation Technology Evaluation and Planning (KICTEP), 1600 Kwangyang-dong, Dongan-gu, Anayng-si, Gyeonggi-do, 431-060, Korea
Sung-Ho Tae and Han-Seung Lee; School of Architecture & Architectural Engineering, Hanyang University 1271, Sa-1dong, SangNokgu, Ansan, Gyunggido, 425-791, Korea
Sung-Bok Lee; Housing and Urban Research Institute, Korea National Housing Corporation 175 Gumi-dong, Seongnam-si, Gyeonggi-do, 463-704 Korea

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