HISTORY AND PERFORMANCE OF MARINE SUBSTRUCTURE CATHODIC PROTECTIO SYSTEMS IN FLORIDA

Corrosion of steel reinforcement in concrete due to the intrusion chloride ions from seawater affects many structures located in ma environments. In Florida, this is significantly reflected by the severe deterioration of bridge substructures. During the last dec cathodic protection has emerged as a practical means of controlli corrosion in this type of structures. The Florida Department of Transportation has developed and/or installed and evaluated a var of cathodic protection systems. These systems are mostly designed mitigate corrosion under cyclic tidal changes typical of marine bridge substructures. This paper describes the development and performance of these cathodic protection systems. Included are impressed current as well as sacrificial anode systems. The impre current group includes: 1) conductive mastic anode, 2) conductive rubber anode, 3) titanium mesh anode embedded in gunite or struct concrete, and 4) titanium mesh anode in integral pile jackets. Th sacrificial systems include: 1) arc-sprayed zinc, 2) expanded zin sheet anode, 3) submerged zinc bulk anode, and 4) expanded zinc m anode in integral pile jackets. For the covering abstract see IT E117314.

• Corporate Authors:

  Federal Highway Administration

  Turner-Fairbank Highway Research Center, 6300 Georgetown Pike
  McLean, VA  United States  22101
• Authors:
  • KESSLER, R J
  • Powers, Rodney G
  • Lasa, Ivan R
• Conference:
  • PROCEEDINGS OF THE INTERNATIONAL CONFERENCE ON CORROSION AND REHABILITATION OF REINFORCED CONCRETE STRUCTURES HELD 7-11 DECEMB 1998, ORLANDO, FLORIDA, USA
• Publication Date: 1999

Language

• English

Media Info

• Features: References;
• Pagination: 12 p.

Subject/Index Terms

• TRT Terms: Bridges; Cathodes; Conferences; Corrosion; Electrolysis; Evaluation and assessment; Prevention; Seas; Support piles; Titanium; Zinc
• ITRD Terms: 3455: Bridge; 8525: Conference; 5252: Corrosion; 6951: Electrode; 7135: Electrolysis; 9020: Evaluation (assessment); 3399: Pile; 9149: Prevention; 4368: Sea; 7129: Titanium; 7189: Zinc
• Subject Areas: Bridges and other structures; Security and Emergencies;

Filing Info

• Accession Number: 00943270
• Record Type: Publication
• Source Agency: Transport Research Laboratory
• Files: ITRD, , USDOT
• Created Date: Jun 11 2004 12:00AM