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A Study on Corrosion Resistance of the Reinforement in Concrete Using Blast-Furnace Slag Powder
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 Title & Authors
A Study on Corrosion Resistance of the Reinforement in Concrete Using Blast-Furnace Slag Powder
Kim Eun-Kyun; Kim Jin-Keun; Lee Dong-Hyuk; Kim Young-Ung; Kim Yong-Chul;
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 Abstract
This paper represents the permeability of chloride ions and the corrosion performance in the concrete blended with granulate blast furnace slag exposed to chloride environment. An ordinary cement (type I ) and sulfate resisting cement(type V) were used for the experiment. The two cements were combined with , , , and of the granulated blast furnace slag. The accelerated permeability tests of chloride ions were performed in accordance with ASTM C1202, and the accelerated corrosion tests of steel were carried out by using the method of immersion/drying cycles. After water curing 28 days, 56 days and 91 days, these tests were conducted until 30 cycles. In every cycle, test specimens were wetted in NaCl solution for three days and dried again in air for four days. As an experimental results, the diffusion coefficient of chloride ions of the ordinary cement Concrete Combined granulated blast furnace slag was much lower than that of non granulated blast furnace slag concrete. Moreover, the diffusion coefficient of chloride ions of sulfate resisting cement concrete was higher than that of ordinary cement concrete. On the basis of the results of accelerated corrosion tests, corrosion resistance of the concrete mixed with granulated blast furnace slag shows good to corrosion resistance, however, the concrete with sulfate resisting cement shows bad to corrosion resistance.
 Keywords
sulfate resisting cement;granulated blast furnace slag;diffusion;permeability tests of chloride ions;corrosion;
 Language
Korean
 Cited by
1.
콘크리트 물-결합재비 및 광물질 혼화재가 전기-화학적 기법에 의한 부식 평가에 미치는 영향,양은익;최윤석;한상훈;

한국구조물진단유지관리공학회 논문집, 2010. vol.14. 2, pp.75-81
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Evaluation of Anti-Corrosion Performance of FRP Hybrid Bar with Notch in GGBFS Concrete, Journal of the Korea institute for structural maintenance and inspection, 2016, 20, 4, 51  crossref(new windwow)
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