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Formulation of a Nondestructive Technique for Evaluating Steel Corrosion in Concrete Structures Formulation of a Nondestructive Technique for Evaluating Steel Corrosion in Concrete Structures

Title
Formulation of a Nondestructive Technique for Evaluating Steel Corrosion in Concrete Structures Formulation of a Nondestructive Technique for Evaluating Steel Corrosion in Concrete Structures
Author
신성우
Keywords
corrosion; steel; completely nondestructive technique; equivalent circuit; polarization resistance; concrete resistivity
Issue Date
2009-02
Publisher
IRON STEEL INST JAPAN KEIDANREN KAIKAN
Citation
ISIJ INTERNATIONAL, v. 49, No. 2, Page. 275-283
Abstract
This paper reports on a fundamental study on the formulation of a corrosion evaluation system for reinforced concrete structures based on a completely nondestructive technique. This is a method of evaluating the polarization resistance produced at the boundary between concrete and steel, without destroying the concrete surface, to estimate the resulting corrosion current density. A method of estimating the resistivity distribution within concrete to examine the steel corrosion environment is also proposed. This system consists of an equivalent circuit, a resistivity model for examining the effect of concrete, i.e., the measurement medium, and an actual measurement system. The equivalent circuit takes account of the electrode arrangement for resistivity measurement, and the impedance within concrete. This technique was verified by tests using specimens with controlled corrosion losses and was proven to express corrosion deterioration within concrete well. Evaluation by this technique was thus found feasible.
URI
https://www.jstage.jst.go.jp/article/isijinternational/49/2/49_2_275/_article/-char/ja/http://repository.hanyang.ac.kr/handle/20.500.11754/103882
ISSN
0915-1559
DOI
10.2355/isijinternational.49.275
Appears in Collections:
COLLEGE OF ENGINEERING SCIENCES[E](공학대학) > ARCHITECTURE(건축학부) > Articles
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