Effect of corrosion-inhibitor-added deicing salts and salt substitutes on reinforcing steels: II. Influence of temperature and oxygen content

✍ Scribed by J.-W. Jang; I. Iwasaki; H.J. Gillis; P.W. Weiblen

• Publisher: Elsevier Science
• Year: 1995
• Tongue: English
• Weight: 773 KB
• Volume: 2
• Category: Article
• ISSN: 1065-7355
• DOI: 10.1016/1065-7355(95)90016-0

✦ Synopsis

The effect of corrosion-inhibitor-added deicing salts and salt substitutes on reinforcing steels (rebars) was investigated at various temperatures and oxygen contents using galvanic cells and optical microscopy. Temperatures and oxygen contents were varied by applying stirring, oxygen-bubbling, high temperature, freeze-thaw cycle, and dry-wet cycle conditions to simulated concrete solutions mixed with 6% corrosion-inhibitor-added deicing salts, salt substitutes, and plain sodium chloride. Corrosion of reinforcing steel varied with oxygen contents and temperatures of the corrosion-inhibitor-added deicing salt and salt substitute solutions. The reinforcing steels under the freeze-thaw cycle condition showed the least corrosion, whereas those under the dry-wet cycle condition showed the most severe corrosion. The effectiveness of corrosion-inhibitor-added deicing salts and salt substitutes was found to vary with temperatures and dissolved oxygen contents. ADVANCEr) CEMENT BASED MA-T~RIarS 1995, 2, 152-160