Multilayer Composite
An Innovative Solution

TrackTex is a multilayer composite with a unique microporous filter media protected by specially engineered protective nonwoven geotextiles. The filter is an orientated microporous polymeric film with a series of microcells and interconnecting pores, characterised by its relative strength and ability to transmit vapour. 

TrackTex can effectively facilitate the passage of liquid under pressure, but the pores are such that the passages of clay fines is prohibited. Without pressure, water cannot pass through the filter, therefore any underlying clay formation will, over time dry out and have an improved modulus. 

A Microporous Composite

Prevents subgrade fines and slurry from migrating into the ballast. 

Facilitates desiccation of the existing subgrade slurry by allowing pore pressures to dissipate under loading, improving track quality of the formation while preventing re-saturation from above. 

Proved to be sufficiently robust to installation and operational damage. 

TrackTex is flexible enough to conform to uneven subgrade formation such that no slurry inducing voids exist. 

Cost Effective 

TrackTex is a unique patented geocomposite and the result of over a decade of research by trackbed engineers and materials scientists. Its specialist filter system improves trackbed quality over time and has been proven to significantly increase maintenance intervals. 

The use of TrackTex is the most cost-effective way of preventing and correcting mud pumping failure. Rainwater is unable to penetrate the microporous filter and is drained laterally to the side of the track. 

Pore water below TrackTex is relived upwards under cyclic loading which aids residual slurry to dry out as the pore water is dissipated. TrackTex conforms to the surface depressions in the formation layer and prevents the creation of slurry pockets. Fast installation rates reduce the construction costs and possession time. 

Increases Maintenance Intervals

Shown to increase trackbed maintenance intervals due to pumping failure by more than 25 times, providing significant savings over any available alternative. 

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Preventing Mud Pumping, Ensuring Track Stability

Comprehensive Support Delivers Trackbed Performance

At GEOfabrics, we provide technical support to help you get the most out of TrackTex and address the cause of mud pumping. This ensures the stability and performance of your tracks. Our team of experts utilizes advanced techniques and technologies to deliver effective solutions tailored to your specific needs

Professional Development Hours

GEOfabrics continuing education sessions provide technical training on specifying and using TrackTex. These sessions contribute to PDH hours.

Trackbed Stabilization

Geosynthetics are widely used as a way to improve ballast performance under railways. GEOFabrics RK4 is a geocomposite comprising a stabilizing geogrid bonded to our RK1 needlepunched non-woven sep...

Symptoms of Mud Pumping

The symptoms of Mud Pumping are similar to those of life expired ballast, i.e. wet spots appearing at the surface of the ballast accompanied by rapid deteriorating of track geometry. However, from ...
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Discover Our Case Studies

Explore our latest case studies showcasing our expertise.

Diamond Crossing Replacement with TrackTex

In Detroit Lakes, MN, a frequently trafficked diamond crossing operated by Canadian Pacific and BNSF had experienced frequent fouling because of mud-pumping. Mud pumping results in ballast failure,...

Coos Bay Line Tunnel 21 Rehabilitation

The Coos Bay Rail Line is owned and operated by the Port of Coos Bay. It spans 134 miles from Coquille Oregon to Eugene Oregon, providing connections to the North American rail network for manufact...

Crossing Repair and Replacement using TrackTex

This road crossing had been replaced and repaired multiple times due to issues with track geometry movement and differential settlement of the highway and railroad. Union Pacific Engineers assessed...