PANDROL UBM is a continuous resilient mat installed directly beneath the ballast bed which may offer vibration isolation and/or protection of the track components during trains passage.
PANDROL UBM are made of high quality resin-bonded rubbers. The elastic properties of the mat solution are defined by the following parameters:
When used for vibration attenuation purposes and depending on the above design parameters, PANDROL UBM solutions can typically achieve attenuation levels of 15 to 20 dBv with reduced resonance frequency.
As protection mat, PANDROL UBM improves the load distribution in the track leading to a reduction of the stresses in the ballast and other track components.