Journal Published Online: 01 July 1987
Volume 9, Issue 1

The Inhibition of Chloride-Induced Corrosion in Reinforced Concrete by Calcium Nitrite



Reinforcing steel in portland cement concrete is subject to accelerated corrosion in the presence of chloride ions. A corrosion-inhibiting admixture based on calcium nitrite has been shown to confer protection (that is, to inhibit corrosion) if the chloride to nitrite weight ratio (Cl/NO2) does not exceed 1.5. Visual observations made on rebars in limewater solutions containing chloride and nitrite ions, current and potential measurements on concrete cylinders with embedded reinforcing bars (rebars), and potential measurements on simulated concrete bridge decks were in substantial agreement.

Author Information

Gaidis, JM
W. R. Grace & Co., Columbia, MD
Rosenberg, AM
W. R. Grace & Co., Columbia, MD
Pages: 4
Price: $25.00
Reprints and Permissions
Reprints and copyright permissions can be requested through the
Copyright Clearance Center
Stock #: CCA10394J
ISSN: 0149-6123
DOI: 10.1520/CCA10394J