A foamed polyurethane cross tie, produced in Austria, has been installed in transit track in Vienna, and subsequently in Italy, Switzerland and Germany. This polymer tie, available in monoblock or duoblock configurations, is designed for tunnels where there is little space and time for repair and maintenance restricted. While the unit price is higher than for conventional ties, this does offer qualities such as compactness, light weight and ready installation in concrete inverts and concrete deck elevated structures. Tests have shown the plastic ties to have a minimum crushing strength of 1600 psi and to be resistant to chemicals, humidity, moisture, ultraviolet rays and temperature extremes. They are designed for use with conventional rail fasteners.

Media Info

  • Pagination: 2 p.
  • Serial:

Subject/Index Terms

Filing Info

  • Accession Number: 00451140
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Nov 30 1985 12:00AM