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Application of Cathodic Prevention in a New Concrete Bridge Deck in Virginia
Corrosion of reinforcement in concrete bridges has been a major factor in limiting the service life of many such structures. As part of a concerted effort to identify cost-effective options for eliminating corrosion of reinforcement, the application of cathodic prevention was tried in a recently constructed concrete bridge deck. The incorporation of an impressed-current cathodic prevention system in a new concrete bridge deck while it was being constructed was made possible by the use of titanium mesh ribbon anodes coated with mixed-metal oxide. The anodes were spaced 32 cm (13 in) apart and transversely across the entire bridge deck to allow for the trouble-free placement of the concrete. The system has been operating for almost 2 years with no extraordinary problems. A comparison of the long-term cost of this option with those of other options, such as the use of corrosion-resistant clad bars or stainless steel bars, indicated that this option is not economically favorable.
Application of Cathodic Prevention in a New Concrete Bridge Deck in Virginia
Corrosion of reinforcement in concrete bridges has been a major factor in limiting the service life of many such structures. As part of a concerted effort to identify cost-effective options for eliminating corrosion of reinforcement, the application of cathodic prevention was tried in a recently constructed concrete bridge deck. The incorporation of an impressed-current cathodic prevention system in a new concrete bridge deck while it was being constructed was made possible by the use of titanium mesh ribbon anodes coated with mixed-metal oxide. The anodes were spaced 32 cm (13 in) apart and transversely across the entire bridge deck to allow for the trouble-free placement of the concrete. The system has been operating for almost 2 years with no extraordinary problems. A comparison of the long-term cost of this option with those of other options, such as the use of corrosion-resistant clad bars or stainless steel bars, indicated that this option is not economically favorable.
Application of Cathodic Prevention in a New Concrete Bridge Deck in Virginia
G. G. Clemena (author) / M. B. Pritchett (author) / C. S. Napier (author)
2003
50 pages
Report
No indication
English
Bridge Deck Performance in Virginia
NTIS | 1971
|Evaluation of Bridge Deck Cathodic Protection
NTIS | 1994
|Bridge Deck Rehabilitation. Part 3. Cathodic Protection
NTIS | 1977
|Composite Advantage bridge deck installed in Virginia
British Library Online Contents | 2012