Roads & Highways
From major highways to haul roads, Tensar’s geogrid technology is a proven solution to ground stabilization problems, increasing pavement life, repair and rehabilitation with highway improvements, helping you to control construction costs and build-in better performance life to your roads. Our 30 years of experience extends to the design and supply of reinforced soil bridge abutments, retaining walls and embankments, too.
In combination with the Spectra System’s engineering and design services, cost-analysis tools and site assistance, TriAx Geogrid provides a simple, reliable and affordable solution for constructing flexible pavements that deliver both reduced construction cost and long-term value. TriAx Geogrid offers a proven performance benefit for paved roads by:
- Reducing pavement component thickness – asphalt, aggregate base and granular subbase
- Simplifying construction
- Lowering long-term maintenance costs
TriAx Geogrid enables you to create durable and cost efficient engineered structures through the product’s unique structure and performance properties.
Weak subgrades pose the greatest challenge to the performance of an unpaved access or haul road. Left untreated, a weak subgrade subjected to continuous heavy traffic will quickly deform, causing the road surface to rut, pothole, “washboard” and ultimately deteriorate beyond use.
Tensar TriAx Geogrids are designed to reduce construction induced or in-service stresses applied to weak subgrades. Geogrid and aggregate interlock to create a mechanically stabilized layer (MSL) to evenly distribute the load, increasing bearing capacity and ensuring longer-term stability and performance. The use of geogrids has also demonstrated effective separation and filtration properties, inhibiting movement to confine the subgrade when properly graded aggregate fill is used. While geotextiles provide separation and filtration functions, their abilities to confine aggregate are inferior to geogrids.*
* Department of the Army, U.S. Army Corps. of Engineers. 2003. Use of Geogrids in Pavement Construction, Engineering Technical Letter 1110-1-189.
Alleviating the Maintenance Burden
With a mechanically stabilized layer a road’s service life can be extended by a factor of three or more, reducing long-term maintenance costs. In fact, it has been estimated that a reduction in road and rehabilitation cost can produce over 50% savings on annual maintenance budgets for flexible pavements, reducing the need for additional highway construction. Tensar’s asphalt reinforcement systems are designed to tackle pavement problems, such as reflective and fatigue cracking.
Where existing paved roadways are prone to reflective or fatigue cracking and require resurfacing, Tensar’s GlasGrid Asphalt Reinforcement System and GlasPave Asphalt Reinforcement System can be the perfect solution, able to be laid over most existing surfaces. GlasGrid can inhibit cracking and the composite products reinforce. Moreover, GlasPave can also provide a low permeability barrier to the deleterious effects of water infiltration, further extending the pavement life and reducing future maintenance costs.