NEW POLYMER COAT WEARS WELL : NEW SURFACE IS THE ANSWER FOR ORTHOTROPIC BRIDGE DECK

This article describes a new product to protect bridge decks used on an orthotropic steel-plate deck bridge that carries three major interstates, I-70, I-64, and I-55, over the Mississippi. About 130,000 vehicles a day (including about 15,000 large trucks) use the bridge. The original wearing surface, dating back to 1967, worked well until 1983. When a second version was applied, it lasted only three years. A third wearing surface lasted six years. For the last attempt, a number of systems and materials were tested in the laboratory and in field tests, and officials decided on a polymer concrete material called Transpo T-48. While two cracks were visible after a year in service, they were successfully repaired using epoxy polymer. To date, some 13 years after application it is performing well. There is also a five- year contract for long-term inspection and testing of the wearing surface. Describes the techniques needed to apply it and the amount of material used.

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  • Corporate Authors:

    Scranton Gillette Communications

    380 E Northwest Highway, Suite 200
    Des Planes, IL  United States  60016-2282
  • Authors:
    • Gopalaratnam, V S
    • Dinitiz, A M
  • Publication Date: 2005-5

Language

  • English

Media Info

Subject/Index Terms

Filing Info

  • Accession Number: 01001788
  • Record Type: Publication
  • Source Agency: UC Berkeley Transportation Library
  • Files: BTRIS, TRIS
  • Created Date: Jul 7 2005 12:00AM