Evaluation of Remotely Monitored Battery Powered Systems for Cathodic Protection of Reinforced Concrete

This report discusses the performance of a remotely monitored battery power supply system designed to provide cathodic protection to reinforced concrete structures. The modular cathodic protection power supply consists of a conveniently sized battery pack provided with an output control device and electronics that transmits the system condition to a Base Unit. The system uses radio signals to communicate the status to the Base Unit which is connected to a remotely monitored data logger. The system was tested under controlled laboratory conditions and at an actual cathodic protection field site. The field site was a bridge owned and operated by the Florida Department of Transportation in Jacksonville, Florida. Reliability of the radio transmissions between Modular Cathodic Protection System (MCPS) components was evaluated in the laboratory as well as in the field. Communication between the MCPS and a third party data logger was also evaluated. The accuracy of the configured output voltage was checked to ensure proper cathodic protection voltage could be provided to a reinforced concrete structure. The findings indicate that the MCPS has the ability to provide adequate cathodic protection to concrete structure components and can provide information on the status of the cathodic protection system wirelessly. Equipment modifications recommended to enhance the dependability of the system include the use of two-way communication. Improvement of the circuitry efficiency is needed to minimize current drain on the batteries and achieve practical operating periods.

Language

  • English

Media Info

  • Media Type: Print
  • Edition: Final Report
  • Features: Appendices; Figures; Photos; References; Tables;
  • Pagination: 49p

Subject/Index Terms

Filing Info

  • Accession Number: 01014834
  • Record Type: Publication
  • Report/Paper Numbers: BC353-45
  • Contract Numbers: BC353-45
  • Files: TRIS, USDOT, STATEDOT
  • Created Date: Dec 19 2005 5:57AM