TCS Tensar TriAx and InterAx geogrids are advanced stabilisation geogrids designed for demanding construction projects. They provide aggregate confinement and soil stabilisation across highways, haul roads, railways, and other trafficked areas. By improving load distribution and reducing aggregate movement, these geogrids extend pavement life while lowering construction costs and carbon footprint.
The TriAx range (TX150, TX190L) uses a unique triangular aperture structure, while the InterAx range (NX750, NX850, HX165-G) features optimised geometry and advanced material science for next-generation stabilisation performance.
Key Benefits
- Reduces aggregate layer thickness and associated costs
- Cuts excavation, waste, and landfill tax costs
- Improves bearing capacity on weak soils
- Reduces differential settlement and rutting
- Extends service life of pavements and platforms
- Rapid and simple installation, saving time on site
- Lower carbon footprint and improved sustainability
Applications
- Highways, car parks, and access roads
- Crane and piling platforms
- Rail track beds and embankments
- Airport aprons and runways
- Haul roads (temporary or permanent)
- Coastal defence bunds and flood protection
- Waste management sites and capping layers
- Soil capping, reclamation, and weak ground stabilisation
Available Sizes
- TCS Tensar TX150 Geogrid – 4m × 75m Roll
- TCS Tensar TX190L Geogrid – 3.8m × 50m Roll
- TCS Tensar InterAx NX750 Geogrid – 3.8m × 50m Roll
- TCS Tensar InterAx NX850 Geogrid – 3.8m × 50m Roll
- TCS Tensar HX165-G Geocomposite – 3.8m × 50m Roll
Technical Specifications (Selected Models)
TX150 (TriAx)
- Material: Polypropylene
- Aperture: Hexagonal, 80mm pitch
- Radial Secant Stiffness @0.5% strain: 360 kN/m
- Junction efficiency: 100% (±10%)
- Roll weight: 0.205 kg/m²
- Roll size: 4m × 75m
TX190L (TriAx)
- Material: Polypropylene
- Aperture: Hexagonal, 120mm pitch
- Radial Secant Stiffness @0.5% strain: 540 kN/m
- Junction efficiency: 100% (±10%)
- Roll weight: 0.300 kg/m²
- Roll size: 3.8m × 50m
NX750 (InterAx)
- Material: Co-extruded polymer
- Apertures: Hexagonal, trapezoidal, triangular
- Radial Secant Stiffness @2% strain: 190 kN/m
- Junction efficiency: 100% (±10%)
- Roll size: 3.8m × 50m (Blue label)
NX850 (InterAx)
- Radial Secant Stiffness @2% strain: 270 kN/m
- Junction efficiency: 100% (±10%)
- Roll size: 3.8m × 50m (Brown label)
HX165-G (InterAx Geocomposite)
- Geogrid with bonded nonwoven geotextile
- Apertures: Hexagonal, trapezoidal & triangular
- Node thickness: 3.25mm
- Static puncture resistance: 1.30kN
- Roll size: 3.8m × 50m
FAQs
What’s the difference between TriAx and InterAx geogrids?
TriAx has a triangular aperture pattern for proven aggregate stabilisation. InterAx is the next-generation version, optimised with advanced material science for even better soil-aggregate interaction.
Do I need to overlap rolls during installation?
Yes. Standard overlaps are 300–600mm, depending on subgrade stiffness and fill type.
Can these geogrids be used with soft ground?
Yes. They are designed for weak subgrades. In very soft soils, thicker aggregate layers or multiple geogrid layers may be required.
Do I need specialist equipment to install?
No. Geogrids are lightweight and can be rolled out by hand. Aggregate should be spread carefully to avoid direct tipping onto the grid.
How long do Tensar geogrids last in the ground?
When covered, they are designed for long-term durability of up to 100 years in normal soil conditions.
