For railways around the world, line speed restrictions and expensive and disruptive track maintenance are frequently caused by poor track geometry and misaligned rails. Tensar’s trackbed stabilisation technology has been proven to substantially reduce track maintenance, being the subject of extensive independent research and development and approved by Network Rail in the UK and National Rail Authorities worldwide.
As part of Tensar’s extensive and innovative research programme, Pennsylvania State University used wireless 3D printed SmartRocks, equipped with accelerometers to monitor movement in three axes, embedded in ballast without TriAx and ballast stabilised with TriAx TX190L in a section of track, to monitor ballast particle movement under cyclic loading. Results demonstrated that TriAx reduced vertical displacement of the ballast particles by 85% and reduced particle rotation by up to 15 times, when compared with a non-stabilised section.
Compared with traditional trackbed construction, creating a mechanically stabilised ballast layer with Tensar TriAx can:
Maintain track geometry for longer
Reduce the rate of ballast settlement
Reduce maintenance induced ballast degradation
Extend the rail track maintenance cycle by a factor of around three
Stabilise ballast for over 20 years
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We are a world leader and expert in technology driven solutions for subgrade stabilisation and soil reinforcement. Tensar supplies geosynthetic products and provides proven practical solutions for poor soil conditions affecting the cost of railways, roads and paved areas. The company also offers products for earth retaining walls and slopes, subgrade improvement and stabilisation, foundations, reinforcement of asphalt to extend pavement life and erosion protection products for soil slopes and waterways.