Concrete cross ties are less resilient than the flexibility of a roadbed of ballast, and wooden cross ties. Therefore, it is necessary to insert a pad between the concrete crosstie and the rail or baseplate. Such padding is important to avoid abrasion of the rail and to damp out noise and vibration, as well as an insulator of track circuits. Rubber has been used, but when compressed, solid rubber tends to spread sideways, leading to abrasion and finally to rupture. Combinations of cork with synthetic or natural rubber permit use of pads of pre-determined load/deflection characteristics. The rubber also seals the cork from moisture, as well as helping the pads to adhere to rail foot and crosstie.

  • Corporate Authors:

    Temple Press Limited

    161-166 Fleet Street
    Longon EC4,   England 
  • Publication Date: 1968-3-1

Media Info

Subject/Index Terms

Filing Info

  • Accession Number: 00037480
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Nov 24 1976 12:00AM