Cable Impregnation for Post-Tension Grouting Problems

Thousands of bridge structures utilize grouted high-strength, post-tension strands. Problems with grouting techniques and grout materials has resulted in bridges with deficient grout including voids, segregated grout, chloride contaminated grout and soft grout. These problems have promoted corrosion and failure of post-tension tendons, some within 6 to 17 years of service. The Florida Department of Transportation (FDOT) has spent more than $55 million (USD) repairing 11 post-tension bridges to date. A cost-effective corrosion mitigation technique has been developed to minimize the corrosion of post-tension bridges which have grouting issues. This paper describes the development and implementation of this technique including application to grouted tendons of the Ringling Bridge (Sarasota, FL) and the I-95 / I-295 Interchange in Jacksonville, FL.

• Record URL:
  http://conf.tac-atc.ca/english/annualconference/tac2014/s-33/whitmore.pdf
• 
• Corporate Authors:

  Transportation Association of Canada (TAC)

  401-1111 Prince of Wales Drive
  Ottawa, Ontario  Canada 
• Authors:
  • Whitmore, D
  • Lasa, I
• Conference:
  • Transportation 2014: Past, Present, Future - 2014 Conference and Exhibition of the Transportation Association of Canada // Transport 2014 : Du passé vers l'avenir - 2014 Congrès et Exposition de 'Association des transports du Canada
• Publication Date: 2014

Language

• English

Media Info

• Pagination: 1 PDF file, 874 KB, 17p.
• Monograph Title: Transportation 2014: Past, Present, Future - 2014 Conference and Exhibition of the Transportation Association of Canada // Transport 2014 : Du passé vers l'avenir - 2014 Congrès et Exposition de 'Association des transports du Canada

Subject/Index Terms

• TRT Terms: Bridges; Cable stayed bridges; Cables; Conferences; Corrosion; Grout; Posttensioning; Prevention
• Uncontrolled Terms: Injection (Materials)
• Geographic Terms: Canada
• ITRD Terms: 3455: Bridge; 4530: Cable; 8018: Canada; 8525: Conference; 5252: Corrosion; 4729: Grout; 3617: Injection (mater); 4789: Post tensioning; 9149: Prevention; 3417: Stayed girder bridge
• Subject Areas: Bridges and other structures; I24: Design of Bridges and Retaining Walls;

Filing Info

• Accession Number: 01553408
• Record Type: Publication
• Source Agency: Transportation Association of Canada (TAC)
• Files: ITRD, TAC
• Created Date: Feb 13 2015 4:30PM