Regular concrete sleepers 1520 mm

  • Concrete Class B40
  • Concrete compressive strength At 28 days 50 N/mm^2 characteristic using 100 mm cubes
  • Sleeper Length 2700
  • Type of Rail R-65 and R-50
  • Strand to comply with BS 5896; diameter 9.3 mm; relax class 2; tensile strength 1770 N/mm^2; initial load per strand 70 kN
  • Cast-in fastening shoulders type 8081 to Pandrol specification CC-J
  • Rail seat positive acceptance test load 210 kN with supports at 560 mm centres
  • Nominal maximum weight of sleeper 319 kg
  • Outer to outer shoulder spacing to produce nominal track gauge of 1520 mm, assuming all parts nominal size and rail in contact with outer insulator, see Pandrol drawing.
  • Design: Sleepers designed to withstand 25 Tonne Axle Load - 160 Km/h
  • Spacing 0.543m
  • Volume of sleeper 0.128 m^3'
  • Freeze resistant F200