TCS Tensar TriAx Geogrid Soil Stabilisation Rolls

TCS Tensar TriAx geogrids are advanced stabilisation geogrids designed to improve the performance of unbound aggregate layers. They are permeable polymer grids that confine aggregate, reduce lateral movement and distribute loads efficiently into the subgrade.

Unlike conventional biaxial geogrids, the TriAx range uses a triangular aperture geometry with ribs oriented in three directions. This allows aggregate particles to interlock in multiple directions, forming a stiffened composite layer that improves bearing capacity and limits rutting under repeated loading. This makes TriAx particularly effective on weak or variable ground where traditional unreinforced sub bases are prone to deformation.

TriAx geogrids are widely specified for highways, car parks, access roads, haul roads and working platforms. They are also used beneath crane pads, piling platforms and airfield pavements where long term stability is required. By improving load transfer, TriAx can reduce excavation depth and aggregate thickness compared to unreinforced designs, helping to control build costs and programme time.

HX165 is a geocomposite version that combines a TriAx style stabilisation geogrid with a factory bonded non woven geotextile. This provides reinforcement and separation in a single layer, reducing installation time and preventing fines migration from soft sub grades into the aggregate layer.

All products should be laid on a prepared formation and covered promptly with aggregate. Trafficking should not take place until the grid or geocomposite is fully buried.

• Triangular aperture geometry for multi directional load distribution
• Improves bearing capacity on weak sub grades
• Reduces rutting and aggregate movement
• Can reduce sub base thickness and excavation
• Suitable for heavily trafficked and permanent works
• HX165 combines separation and stabilisation in one layer

TX150 and TX190L are manufactured from punched and stretched polypropylene. HX165 is a polypropylene geogrid with a bonded non woven polypropylene geotextile to provide combined reinforcement and separation.

Product type: TriAx stabilisation geogrid and geocomposite
Polymer: Polypropylene
Junction efficiency: Approximately 100%
Carbon black content: Minimum 2%
Installation: Must be covered within 30 days

TX150 TriAx Geogrid
Aperture geometry: Triangular
Hexagon pitch: 80 mm
Radial secant stiffness at 0.5% strain: 360 kN/m
Radial secant stiffness at 2% strain: 250 kN/m
Weight: 0.205 kg/m²
Roll size: 4 m x 75 m
Roll coverage: 300 m²

TX190L TriAx Geogrid
Aperture geometry: Triangular
Hexagon pitch: 120 mm
Radial secant stiffness at 0.5% strain: 540 kN/m
Radial secant stiffness at 2% strain: 400 kN/m
Weight: 0.300 kg/m²
Roll size: 3.8m x 50m
Roll coverage: 190m²

HX165 Geocomposite
Geogrid with bonded non woven geotextile
Aperture geometry: TriAx multi shaped pattern
Continuous rib pitch: 80 mm
Node thickness: 3.25 mm
Static puncture resistance: 1.30 kN
Roll size: 3.8 m x 50 m
Roll coverage: 190 m²
Design life:
50 years in natural soils at temperatures up to 25°C
Up to 100 years at soil temperatures below 15°C