TESTING AND EVALUATING PRESTRESSED CONCRETE BRIDGE DECKS WITH FIBERGLASS COMPOSITE CABLES

Advanced composite materials such as fiberglass and graphite do not have corrosion problems like steel. Hence, they are studied in this project for their feasibility to use in prestressed concrete bridge decks. The mechanical properties of these cables were tested and compared with steel cables. A combination test was developed to evaluate the quality of prestressing cables. The fiberglass and graphite cables successfully completed this test. The concrete environment with sodium chloride on the cables was tested, and the short term study did not product any damage to fiberglass cables. The pull out strength and slip critical beam tests did not show any damage to bond between cables and concrete. The transfer length and development length of fiberglass and graphite cables were determined and they were comparable with steel cables. The prestressing losses for fiberglass and graphite cables were less than steel cables. The flexural behavior of advanced composite cable prestressed beams was similar to steel cable prestressed beams up to the first crack. No damage was noticed on any of the beams due to cyclic loading. It seems feasible to use fiberglass and graphite cables for prestressing concrete units in lieu of steel cables.

  • Corporate Authors:

    South Dakota School of Mines and Technology, Rapid City

    501 East St Joseph Street
    Rapid City, SD  United States  57701
  • Authors:
    • Iyer, S L
  • Publication Date: 1991-5

Language

  • English

Media Info

  • Features: Appendices; Figures; References; Tables;
  • Pagination: 110 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00727052
  • Record Type: Publication
  • Report/Paper Numbers: Final Report
  • Files: TRIS
  • Created Date: Oct 9 1996 12:00AM