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Ballast Mat Damper

The RailMat Ballast Mat Damper is a vibration damper made of recycled rubber that is installed under the ballast of a railroad. It reduces vibrations of ballasted tracks in urban areas (up to -20 dB @ 63 Hz).

 

The Ballast Mat Damper is suited for tramways and subways as well as for high-speed trains in urban areas.

 

The Ballast Mat Damper is either in the form of a 30 mm mat with both flat sides (directly on the ground stabilized) or in the form of a mat with a dimpled surface and flat on the other (wavy face to down on concrete slab foundation). It is always accompanied by a geotextile membrane between the ballast and the rubber mat.

 

It is very resistant to wet conditions thanks to its permeability and drainage, and is also resilient to frost and fatigue (tested according to DIN 45673-5).

Benefits

  • Very effective solution for reducing vibration nuisance
  • Quick and easy installation
  • Keep its excellent performance in time
  • Eco-friendly  solution (100% recycled and recyclable)

Applications

The Ballast Mat Damper is particularly suitable for:

  • ballasted tracks
  • trams ways or metros
  • High-speed trains

Technical information

Composition   Grains and fibers of natural recycled rubber with a polyurethane binder
Couleur   Black
Thickness   20 or 30 mm
Density   650 - 700 kg/m³
Attenuation @ 63 Hz   > 20 dB
Kstat DIN 45673-5 > 35 MN/m3
Kdyn DIN 45673-5 < 50 MN/m3
Resistance to fatigue DIN 45673-5

Variation Kstat < 20 %

Resistance to frost DIN 45673-5

Variation Kstat < 20 %

Dimensions  

Slabs of 600 x 1700 mm or rolls

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