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RockDelta® Vibration Isolation
As a member of the Rockwool Group of companies – the world’s largest and leading manufacturer of stone wool – the vision of RockDelta is to preserve a comfortable environment by controlling unwanted ground-borne noise and vibrations. Based upon two distinct product lines – RockBallast® for anti-vibration treatment of ballasted tracks and RockXolid® for anti-vibration treatment of floating slab tracks – our innovative product portfolio consists of mat based anti-vibration isolation systems to help control ground-borne vibrations.
RockDelta® vibration isolation systems have been installed since 1974.
High efficiency Vibration Isolation with Stone Wool Resilient Mats
Attenuation of vibration is achieved by decoupling the track from the ground using RockDelta vibration isolation which acts as a high-efficiency, full contact, resilient anti-vibration mat with unique properties.
RockXolid® – Resilient Mats for Floating Slab Tracks
The RockDelta solution for resiliently supported floating slab tracks consists of a continuous, full-contact system that introduces a durable, high-efficiency spring element into the track substructure. This ensures resilient decoupling of the dynamic behaviour of the concrete slab and track system in relation to the ground beneath.

Tram Alcalá de Guadaira
RockBallast® – Resilient Mats for Ballast Tracks
The RockDelta solution for resiliently supported ballast tracks consists of a patented dual-density mat, with a low-density elastic bottom layer and an integral high-density force-distributing top layer. This is combined with a composite product comprising two membranes of non-woven geotextile and a load-distributing core.

Copenhagen Metro
Contact details
www.rockdelta.com
sales@rockdelta.com
Head office: +45 4655 8709
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