EPOXY RESINS FOR JOINTING SEGMENTALLY CONSTRUCTED PRESTRESSED CONCRETE BRIDGES

This report presents the general requirements for epoxy resins for jointing segmentally constructed prestressed concrete bridges using the cantilever erection method. The report outlines the main function of the epoxy resin material in this type structure, and discusses the development of specific performance requirements for the epoxy resins. Simple test methods and jointing conditions for evaluation of the suitability of epoxy resins for this specific application are suggested. The report summarizes the results of acceptance tests on nine epoxy resin materials submitted by various manufacturers and formulators for consideration for use in a laboratory model and a field structure constructed of precast segments using the cantilever erection procedures. Information on pot life, flexural jointing strength, shear jointing strength, and rate of strength development are included. Experience with the materials submitted for exploratory testing indicates that no fully satisfactory material which met all of the original specifications was found in the program. However, a number of promising materials were identified which could be used with waiver of some parts of the specification. The critical surface condition in evaluation of the jointing capacity was the saturated but surface dry condition. A number of the materials tested would be suitable if used under the completely dry surface condition. Test results indicated the importance of proper surface preparation and particularly the removal of all traces of oil from the surface of the specimens to be jointed. The report includes a recommendation in detailed specification form for epoxy resin material and jointing procedures for this construction application. /FHWA/

  • Supplemental Notes:
    • Work done in cooperation with the Federal Highway Administration. Sponsored by the Texas Highway Department.
  • Corporate Authors:

    University of Texas, Austin

    Center for Highway Research, 200 West 21st Street
    Austin, TX  USA  78712

    Federal Highway Administration

    Division of Planning and Research, 1200 New Jersey Avenue, SE
    Washington, DC  USA  20590

    Texas State Department of Highways & Public Transp

    P.O. Box 5051
    Austin, TX  USA  78763
  • Authors:
    • Kashima, S
    • Breen, J E
  • Publication Date: 1974-8

Media Info

  • Pagination: 84 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00130579
  • Record Type: Publication
  • Source Agency: Federal Highway Administration
  • Report/Paper Numbers: FHWA-RD-75-S0403
  • Contract Numbers: 3-5-69-121-2
  • Files: NTIS, TRIS, USDOT, STATEDOT
  • Created Date: Apr 21 1976 12:00AM