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A Study on Corrosion Potential of Cracked Concrete Beam According to Corrosion Resistance Assessment  

Song, Ha-Won (연세대학교 사회환경시스템공학부)
Lee, Chang-Hong (연세대학교 사회환경시스템공학부)
Lee, Kewn-Chu (연세대학교 사회환경시스템공학부)
Publication Information
Journal of the Korea institute for structural maintenance and inspection / v.13, no.1, 2009 , pp. 97-105 More about this Journal
Abstract
Development and use of blended cement concrete is gaining more importance in the construction industry with reference to durability mainly due to the pore refinement and reduction in permeability. Cracks play a major role on important parameters like permeability, rate of chloride ingress, compressive strength and thus affect the reinforcement corrosion protection. Furthermore, when a crack occurs in the cover concrete, the corrosion of the steel reinforcement may be accelerated because the deterioration causing factors can pass through the crack. In recent years the effect of cracking on the penetration of concrete has been the subject of numerous investigations. Therefore assessing the service life using blended concrete becomes obviously in considering the durability. In the present study, the corrosion assessment of composite concrete beams with and without crack with of 0.3mm using OPC, 30% PFA, 60% GGBS, 10% SF was performed using half cell potential measurement, galvanic potential measurement, mass loss of steel over a period of 60days under marine environmental conditions and the results were discussed in detail.
Keywords
Blended concrete; Chloride attack; Chloride threshold level; Corrosion resistance; Crack;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
연도 인용수 순위
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