COMPOSITE MATERIALS FOR RAILROAD APPLICATIONS

A six month feasibility study was conducted to evaluate the possibility of renovating deteriorated wooden railroad ties to extend their useful life. Monomer impregnation of ties, with subsequent polymerization, was tried using methyl methacrylate. Improvement in strength was noted but problems were foreseen in the relatively large amount of monomer loading required and in tie removal and reinsertion for this process, with consequent unfavorable economics. Techniques were evaluated for in-place spraying and/or coating of ties. Very favorable improvements in strength were obtained with epoxy resins. These techniques appear to offer significantly improved strength and durability, since the intention is to fill cracks and checks in the deteriorated tie. This should enhance weathering and freeze-thaw resistance and extend the life of the tie in place. The economic outlook for this technique may prove favorable compared to new tie replacement. It is recommended that the research continue to develop suitable resin formulations, test methods and equipment for field application of upgrading the condition of a deteriorated tie by the in-place technique. Resin systems to be evaluated include filled or extended epoxies and hot-melt, coal tar derivatives.

  • Corporate Authors:

    Brookhaven National Laboratory

    Department of Applied Science
    Upton, NY  USA  11973
  • Authors:
    • Beller, M
    • Steinberg, M
  • Publication Date: 1973-2

Media Info

  • Features: Figures; References; Tables;
  • Pagination: 29 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00081637
  • Record Type: Publication
  • Source Agency: National Technical Information Service
  • Report/Paper Numbers: BNL 50371
  • Files: TRIS
  • Created Date: Mar 6 1975 12:00AM