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Model Solutions of Concrete Environment and Effect of Chloride Ions on the Electrochemical Corrosion Behavior of Reinforcing Mild Steel / LP. V¿̐ưleva, MC. Cebada

Conference Author:
Marine Corrosion in Tropical Environments (2000 : Orlando, Florida)
Physical Description:
1 online resource (20 pages) : illustrations, figures, tables
Additional Creators:
V¿̐ưleva, LP., Cebada, MC., American Society for Testing and Materials, and ASTM International
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Summary:
Two model solution have been used in this study in order to simulate the corrosion behavior of mild steel rebars in the pore concrete environment. The first one is based on saturated calcium hydroxide (Ca(OH)2, pH 12.7¿̐ư 2) and cement (portland Type I) extract solution (pH 12.7¿̐ư 2) in open air, at room temperature (24¿̐ư 1¿̐ưC). The effect of chloride ions (5g/l and 10g/l NaCl) was studied in both model solutions. Electrochemical techniques such as potentiodynamic polarization curves and electrochemical impedance spectroscopy (EIS) have been performed in a classical three-electrode cell. Also additional information was obtained by SEM and EDAX analysis. It seems that there is a difference in the way each solution simulates the behavior of steel, because the passive films formed show dissimilar topography, composition and anticorrosion protectiveness. The presence of chloride ions allows one to see more clearly the difference between the model solutions and the way each one interacts with the reinforcing steel. In this case the cement solution provides a more protective film for the reinforcing steel.
Dates of Publication and/or Sequential Designation:
Volume 2000, Issue 1399 (January 2000)
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ISBN:
9780803154469 (e-ISBN)
9780803128736
0803128738
Digital File Characteristics:
text file PDF
Bibliography Note:
Includes bibliographical references 15.
Other Forms:
Also available online via the World Wide Web. Tables of contents and abstracts freely available; full-text articles available by subscription.
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Also available in PDF edition.
Reproduction Note:
Electronic reproduction. W. Conshohocken, Pa. : ASTM International, 2000. Mode of access: World Wide Web. System requirements: Web browser. Access may be restricted to users at subscribing institutions.
Technical Details:
Mode of access: World Wide Web.
Source of Acquisition:
ASTM International PDF Purchase price USD25.
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