Prevention of chloride-induced corrosion damage to bridges

Conference · Tue Jan 01 04:00:00 EST 2002

OSTI ID:898303

Cramer, Stephen D; Covino, Jr, Bernard S; Bullard, Sophie J; Holcomb, Gordon R; Russell, James H; Ziomek-Moroz, Margaret; Virmani, Y P ^[1]; Butler, J T ^[2]; Nelson, F J ^[3]; Thompson, N G ^[4]

---

1. FHWA, USDOT
2. Joseph T. Butler, Inc.
3. Oregon Dept. of Transportation
4. CC Technologies

The annual direct cost of bridge infrastructure corrosion to the U.S. economy is estimated at $8.3 billion, with indirect costs approximately 10 times higher. Of the approximately 600000 bridges in the U.S., between 15% and 20% are listed as ?structurally deficient,? frequently due to corrosion damage. Five technologies are presented for reducing the cost of chloride-induced corrosion damage: (1) conductive coating anodes for cathodic protection of existing reinforce concrete bridges, (2) epoxy-coated rebar (ECR), (3) stainless steel rebar, and (4) high-performance concrete for extending the service life of new structures, and (5) metalizing to provide economical, long-term corrosion protection of steel bridges. Conductive coating anodes and stainless steel rebar represent ongoing work by the Oregon Department of Transportation with final verdicts not expected for years. The ECR and metalizing technology have longer track records and are better established in the bridge construction and protection industry. Application of these technologies is guided by a thorough understanding of their performance, of characteristics of the bridge and its environment, and of the results that are sought.

• Research Organization: Albany Research Center (ARC), Albany, OR; FWHA-USDOT; ODOT, Salem, OR
• Sponsoring Organization: USDOE - Office of Fossil Energy (FE)
• OSTI ID: 898303
• Report Number(s): DOE/ARC-2003-044
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
ANODES
CATHODIC PROTECTION
COATINGS
CONCRETES
CONSTRUCTION
CORROSION
CORROSION PROTECTION
PERFORMANCE
SERVICE LIFE
STAINLESS STEELS
STEELS
US DOT
anodes
bridges
cathodic protection
chloride
corrosion
cost of corrosion
epoxy-coated rebar
metalizing
microsilica concrete
reinforced concrete
stainless steel
steel
thermal spray