Tensar Earth Technologies (TET) is the leading developer and manufacturer of high-performance products and engineered solutions. Our manufacturing facilities enable us to satisfy and exceed customer needs by providing a wide range of geosynthetic solutions for your common earthwork problems.

The performance of any rail track is directly affected by the ballast and sub-ballast, which together form he roadbed structure. When tracks are built over soft subgrades, regular maintenance of the foundation layers becomes more critical. Even routine maintenance requires some disruption to normal operations resulting in additional expense related to maintenance costs and lost productivity.

Developed to stabilize the ballast and sub-ballast layers, the Spectra® Rail Railway Improvement System is a proven and cost-effective solution that utilizes Tensar® Geogrids, the system?s key component. The American Railway Engineering and Maintenance-of-Way Association (AREMA) has recently recognized the use of geogrids in rail designs by including a
new chapter in its 2010 Manual for Engineering.

Tensar can help minimize ballast settlement and lateral creep, reducing the rate of trackbed deterioration. In fact, rates of settlement are comparable to those of tracks constructed over solid bedrock. This reduces the overall maintenance requirements. The use of Tensar systems stiffens the ballast layer as aggregate and geogrid mechanically interlock. Shear forces from passing trains are transferred from the aggregate to the geogrid, ultimately reducing wear and tear on the track and its associated mechanical components (ties, insulated joints, etc.). As the third benefit, Tensar's SpectraRail system reduces the buildup of aggregate fines, thereby helping to maintain good quality drainage within the roadbed structure.

TriAx Geogrids, Engineering, Software tools, On Site Assistance.