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http://dx.doi.org/10.3740/MRSK.2003.13.2.094

Physical/Chemical Characterization of Ordinary Portland Cement/Ground Granulated Blast Furnace Slag Pastes Containing Low Carbon Steel as Reinforcements  

Hwang, Jin-Ha (Dept. of Materials Science and Engineering College of Engineering Hogik University)
Publication Information
Korean Journal of Materials Research / v.13, no.2, 2003 , pp. 94-100 More about this Journal
Abstract
The interface between low carbon steel and blended cement pastes containing slag was investigated using impedance spectroscopy. In addition, the pastes were characterized by several analytical methods (XRD, EDX, electrode potential, pH and ICP). The electrical behavior of the interface in the blended slag systems is correlated to its corresponding pore solution chemistry and the products present in the interface. Passivation occurred at the paste/steel interfaces, in cement pastes up to containing from 0 to 75% slag content. 100% slag paste induced corrosion of the low carbon steel, which could be explained by the influence of sulfur on the system.
Keywords
impedance spectroscopy; slag; cement; passivation; sulfur;
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