INTEGRALLY-FORMED BIAXIAL (BX) GEOGRIDS
Integrally-formed Biaxial (BX) Geogrids
L.E. Geosolutions’ integrally formed, stiff, biaxial (BX) geogrids are used to provide reinforcement for unbound aggregate layers. BX geogrids have been used extensively worldwide for more than 40 years and have gained formal recognition in the US from the likes of The US Army Corps of Engineers, The American Railway Engineering and Maintenance-of-way Association (AREMA) and more than 40 State Departments of Transportation.
Reinforcement Mechanism
Partial penetration of aggregate particles through the geogrid’s apertures results in “Mechanical Interlock” whereby the two materials are joined to form a composite layer with enhanced structural properties. Performance benefits under traffic loading result from the geogrid-reinforced aggregate having enhanced stiffness which is maintained during the full design life of the structure.
Applications
In addition to the more conventional asphalt reinforcement geogrids described above, L.E. Geosolutions provides alternative interlayer products to satisfy the user’s specific needs or circumstances. For example, some engineers and installers prefer geogrids with a fabric backing to help with installation and provide a water retardation layer. In other cases, budget constraints result in the need for a cheaper product which acts principally as a waterproofing layer but also has moderate tensile strength for reinforcement.
Unpaved Roads
- Access roads
- Working platforms
- Low volume local roads
Flexible Pavements
- Highways
- Parking lots
- Sub-division roads
- Etc.
Heavy Duty Pavements
- Ports
- Intermodal yards
- Trans-load facilities
Sub-ballast & Ballast Layers
- Heavy (Class 1) main lines
- Light rail/transit
- Sidings
Value Propositions
The reinforcement mechanism remains the same for all applications involving the use of BX geogrids; the value proposition does however vary. The benefits provided by BX geogrids in some of the main applications are shown below.
Analysis based on: subgrade CBR of 1%, 2,000 vehicle passes, 2 in. maximum rut, installed aggregate cost $20/Ton
Specifications
L.E. Geosolutions’ Biaxial (BX) Geogrids are manufactured at our own plant located in Alpharetta, GA using the highest quality standards possible. Our plant is fully AASHTO accredited and a detailed QA/QC document can be provided to potential customers upon request. In addition, Mill Certificates can be provided for products sold on specific projects.