Vibration Isolating Mats

Vibration isolating under-track mats are designed for use in railway tracks (railway, tram and metro) to reduce dynamic impacts from rail vehicle traffic on the surrounding areas. The reduction includes damping of vibrations (material vibrations) and noise – primarily so-called secondary noise emitted by structural elements of buildings excited during vehicle passage.

Under-ballast mats (also called sub-ballast mats) – often referred to by English abbreviations UBM and/or SBM (Under Ballast Mats or Sub Ballast Mats) are designed for ballasted track construction to be laid on the substrate under the ballast layer. Under-ballast mats are particularly effective on rigid substrates such as concrete tunnel invert, concrete or steel ballast trough on bridge structures. Additionally, UBM/SBM mats, by increasing the contact surface area at the subgrade-ballast interface, reduce stresses in the subgrade and ballast, slowing down the rate of ballast grain crushing.

Under-slab mats – often referred to by English abbreviations USM and/or STM and/or MSS (Under Slab Mats, Slab Track Mats and Mass Spring System) are designed for ballastless track constructions. They are installed under concrete base slabs, prefabricated track slabs, or longitudinal foundation beams under track framework. USM/STM/MSS mats are typically used to limit the impact of the track on the surroundings by reducing vibrations generated during the passage of rail vehicles, and consequently, reducing the secondary noise emitted by excited structural elements of buildings located along the railway line.

SBR (Styrene-Butadiene Rubber) elastomer is a synthetic rubber with excellent damping properties. It is characterized by high abrasion resistance, elasticity over a wide temperature range and long service life.

Primary polyurethane (PU) is a synthetic material with exceptional elastic properties. Manufactured from primary raw materials, it offers the highest quality and parameter repeatability.

Vibration isolating under-track mats made of polyurethane composite EPUMAT PU are designed for use in ballastless railway tracks to reduce dynamic impacts from rail vehicle traffic on the surrounding areas. The reduction of impacts concerns vibrations (material oscillations) and noise – primarily the so-called secondary noise emitted by structural elements of buildings and engineering structures excited into vibration.