An Experimental Study on Corrosion Resistance of Concrete With Ground Granulate Blast-Furnace Slag

This article reports on a study of the corrosion resistance of concrete containing ground granulate blast-furnace slag (GGBS) and ASTM Type I or ASTM Type V cement. Rapid chloride permeability tests were conducted to determine the qualitative terms of chloride-ion penetrability. Accelerated chloride-ion diffusion tests were done to calculate diffusion coefficients of chloride-ions permeated through concrete specimens. Accelerated steel corrosion tests were carried out by using the repeated wetting and drying technique. Half-cell potential tests were undertaken to evaluate the probability of steel corrosion. Finally, the surface area of corrosion on embedded steel in concrete specimens was measured to confirm half-cell test results. Test results showed that the coefficient of permeability of Type I cement concrete was lower than that of Type V cement concrete. All the concrete mixed with GGBS exhibited lower diffusion coefficient, compared to GGBS-free concrete. Moreover, the corrosion probability of steel bar in Type V cement concrete was higher than that of steel bar in Type I cement concrete. The authors conclude that much stronger corrosion resistance can be achieved if higher volume of GGBS is added in Type I cement rather than Type V cement.

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/00088846
• Authors:
  • Yeau, Kyong Yun
  • Kim, Eun Kyum
• Publication Date: 2005-7

Language

• English

Media Info

• Media Type: Print
• Features: Figures; References; Tables;
• Pagination: pp 1391-1399
• Serial:
  • Cement and Concrete Research
  • Volume: 35
  • Issue Number: 7
  • Publisher: Elsevier
  • ISSN: 0008-8846
  • Serial URL: http://www.sciencedirect.com/science/journal/00088846

Subject/Index Terms

• TRT Terms: Cement; Chlorides; Corrosion resistance; Corrosion tests; Diffusivity; Granulated slag; Permeability
• Uncontrolled Terms: ASTM Type I cement; ASTM Type V cement
• Subject Areas: Highways; Materials; I32: Concrete;

Filing Info

• Accession Number: 01002288
• Record Type: Publication
• Files: TRIS
• Created Date: Jul 22 2005 1:24PM