Ballast Renewal – Filtration and Confinement
The Spitze ballast-cleaning train is used extensively to deal with contaminated ballast. Running at 3m/s, the train lifts a length of the track, extracts, then washes and replaces the ballast. The track is then lowered back in to place.
This exercise is also a good opportunity to deploy a geosynthetic to combat the contamination problem and extend the maintenance interval. On this occasion, RK4 – a textile/grid composite, was installed to stabilise the ballast/subgrade interface and reduce the upward movement of subgrade fines.
Using the 30m long by 3.2m wide composite, avoided the complication of controlling two separate products and the result was a faster installation.
Railway-News magazine Issue 3, 2023: TrackTex – Solving Mud Pumping for the Rail Industry Worldwide.
Railway-News magazine Issue 4 Track & Infrastructure edition, November 2022: GEOfabrics - Trackbed Stabilisation Solutions from the Experts.
Railway-News magazine Issue 3, September 2022: GEOfabrics – Performance You Can Trust, Reinforcement Where It's Needed.
Railway-News magazine Issue 4, September 2021: Geofabrics - Clearing the Route: CuTex Geocomposite – Root Barrier Inhibition.
Railway-News Magazine issue 3 2021: GEOfabrics – TrackTex Geocomposite – The ‘Once Only’ Solution to Mud Pumping
In 2010 Geofabrics launched a new anti pumping geocomposite in the UK, which could be used to prevent the development of mud pumping.
This paper describes the development process undertaken to produce a lightweight, geosynthetic filter to replace a sand-blanket used within trackbed.
TrackTex™ Anti-Pumping Geocomposite was used to to provide an increased form of ballast protection in known trouble areas in Christiansburg, Virginia.
TrackTex anti-pumping geocomposite was selected by Network Rail as a method of preventing mud pumping and prolonging trackbed performance.
Geofabrics' CuTex copper composite root barrier protects rail infrastructure from Japanese knotweed.
GEOFabrics will be in attendance at Railway Interchange 2023 at the Indiana Convention Centre in Indianapolis, IN, USA.
TrackTex has been installed in a road railroad crossing in Illinois with no reported issues throughout its utilisation.
A statement from Gordon Donald, on the success of the Geofabrics Ltd versus Fiberweb Geosynthetics Ltd patent infingement case.
A statement by Gordon Donald, Managing Director of Geofabrics, regarding the judgement on patent infringement by Fiberweb Geosynthetics Ltd.
TrackTex was installed on a frequently trafficked diamond crossing as a long-term effective remedy to frequent fouling caused by mud-pumping.
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