Rockdelta RB

Providing for decades of stable, predictable and highest vibration isolation even in the most demanding applications the Rockdelta anti-vibration solution for ballasted railway tracks is based on a sophisticated three-stage approach using high-efficiency Rockdelta RB as the core element.

The solution consists of a unique dual-density sub-ballast mat with;

• a low-damping, soft resilient layer – designed, tested and manufactured to have an extended lifetime with retained functional performance even under harsh climatic conditions
• a force distributing high-density top layer, and finally
• the sub ballast mats fibres are being protected from potential impairment by the ballast stones with a geocomposite product – with excellent resistance to stretching and tearing – that deforms under the load of the ballast and enables easy replacement of the ballast.

The Rockdelta geocomposite is a high-quality composite product comprising two membranes of non-woven geotextile and a load-distributing core. This solution can also be designed to act as a drainage system.