TCS Tensar InterAx Geogrid Soil Stabilisation Rolls

TCS Tensar InterAx geogrids are next generation soil stabilisation grids designed to improve the performance of unbound granular layers over weak or variable sub grades. They are permeable, punched and stretched polymer grids that stabilise aggregate by interlock rather than tensile reinforcement.

InterAx geogrids use a complex aperture geometry made up of hexagonal, trapezoidal and triangular shapes. This optimised structure improves aggregate interaction, limits lateral movement and increases the stiffness of the stabilised layer. When installed correctly, the system reduces rutting, settlement and deformation under repeated loading.

InterAx NX750 and NX850 are widely specified for highways, car parks, access roads, haul roads and working platforms. They are also suitable for crane pads, piling platforms, rail formations and airfield pavements where long term durability and consistent performance are required.

By improving load distribution within the aggregate layer, InterAx geogrids can reduce sub base thickness and excavation requirements compared to unreinforced construction. This can lower material volumes, speed up installation and reduce overall project cost, particularly on soft ground.

Installation is straightforward. The geogrid is laid directly onto a prepared formation and covered with a well graded granular fill. Where a separation layer is required, a non woven geotextile membrane should be installed beneath the geogrid. The grid must be covered within 30 days to maintain durability performance.

• Optimised InterAx geometry for enhanced aggregate confinement
• Improves bearing capacity on weak sub grades
• Reduces rutting and differential settlement
• Can reduce sub base thickness and excavation
• Suitable for permanent and heavily trafficked works
• BBA certified for stabilisation of unbound granular layers

InterAx geogrids are manufactured from a co extruded composite polymer sheet that is punched and oriented to form an integrally bonded grid structure. This provides resistance to biological and chemical degradation in soil environments.

Product type: Soil stabilisation geogrid
Polymer: Co extruded composite polymer
Junction efficiency: 100% ±10%
Continuous rib pitch: 80 mm
Installation exposure limit: Must be covered within 30 days

NX750 InterAx Geogrid
Aperture geometry: Hexagonal, trapezoidal and triangular
Radial secant stiffness at 2% strain: 190 kN/m
Radial secant stiffness ratio: 0.60
Node thickness: 3.5 mm
Roll size: 3.8 m x 50 m
Roll coverage: 190 m²

NX850 InterAx Geogrid
Aperture geometry: Hexagonal, trapezoidal and triangular
Radial secant stiffness at 2% strain: 270 kN/m
Radial secant stiffness ratio: 0.60
Node thickness: 4.5 mm
Roll size: 3.8 m x 50 m
Roll coverage: 190 m²
Durability:
Up to 100 years in natural soils at temperatures ≤15°C


Minimum 50 years in natural soils at temperatures ≤25°C