About Tensar TriAx Geogrid

Tensar TriAx geogrid represents the pinnacle of 30 years of continuous innovation and development, making it the most advanced geogrid on the market. It outperforms traditional biaxial geogrids, significantly reducing time and costs.

The TriAx structure is triangular, providing superior stability and performance compared to biaxial geogrids, which are strong in only two directions. This multi-directional geogrid enhances stability and increases bearing capacity.

Thanks to its improved rib geometry and junction, the Tensar TriAx geogrid enhances aggregate interlock and confinement, leading to better structural performance of the mechanically stabilized layer.

Proven Performance

Extensive testing, including trafficking trials at the University of Nottingham and full-scale trials at the Transport Research Laboratory (TRL) and the Building Research Establishment (BRE), as well as in-house at Tensar’s Technology Center, has demonstrated the superior performance of the TriAx geogrid compared to traditional biaxial geogrids. These findings have been validated through field trials and demonstrations, ensuring the geogrid’s high performance.

Functioning Capabilities

The improved rib geometry and junction capabilities of the Tensar TriAx geogrid enhance aggregate interlock and confinement, resulting in superior structural performance of the mechanically stabilized layer.

Applications for Roads and Highways

Tensar TriAx geogrids provide an optimal solution for pavement reinforcement in road and highway projects, extending pavement life. They allow for a one-third reduction in pavement thickness without compromising performance, leading to lower installation and maintenance costs. The geogrids can be quickly deployed, making them ideal for constructing temporary access roads or unsealed roads over soft ground, as well as for handling heavy vehicle loads. TriAx geogrids offer significant savings and better performance compared to biaxial geogrids.

Railways

In railway projects, Tensar TriAx geogrids enhance bearing capacity, stabilize rail ballast and track bed, and limit ballast movement and displacement, reducing maintenance over the railway line’s lifespan. The TriAx TX190 large aperture geogrids are widely used with rail ballasts and supported by international rail research. Using Tensar TriAx in rail track solutions can reduce the foundation material needed by up to 30%, resulting in substantial construction cost savings.

Airports and Heavy-Duty Pavements

Tensar TriAx geogrids are employed in constructing working platforms for airport pavements and hardstand areas, particularly on soft ground. The layers form a stiff pole that distributes heavy loads over large areas, minimizing differential settlement. In some cases, two or three geogrid layers may be required.

Advantages

The interlocking structure of Tensar TriAx geogrids provides greater strength and durability. Extensive traffic trials in the UK support its outstanding performance. Using Tensar TriAx geogrids saves costs on sub-base and aggregate requirements. They triple the load capacity in road and highway projects, are easily distributed, and are available nationwide. Tensar geogrids are cost-effective and have a proven performance record in the United States.

Installation

Installing Tensar TriAx geogrids is straightforward. The geogrid can be easily rolled out directly over the subgrade after removing major protrusions such as rocks and tree stumps. Standard road aggregates are used with Tensar TriAx geogrids for construction, making them suitable for temporary or permanent roads and highways, working platforms, and gravel raft foundations.