How Geogrid Works: Lateral Restraint Demonstration

The U.S. Army Corps of Engineers defined the primary applications of geogrid stabilization for paved and unpaved structures: lateral restraint, improved bearing capacity, and tensioned membrane effect. Lateral restraint is the ability to confine aggregate particles within the plane of the geogrid. Once the aggregate layer strikes through the apertures of the geogrid, its vertical and horizontal movement is limited, creating a high degree of in-plane stiffness. This means that when geogrid is used in the design of paved or unpaved structures, these structures become much more efficient at managing the stress imposed by heavy loads because the aggregate moves very little. 

This box-of-rocks video offers a simple demonstration of the lateral restraint mechanism at work. You'll see a comparison of how an unstablized section responds to a section benefiting from the introduction of TriAx Geogrid, the most advanced geogrid, in an aggregate layer.

Tensar has developed online resource centers so that engineers and contractors can learn how to build more efficiently using TriAx Geogrid technology. Here you'll find free design tools, webinars, project profiles and more. Click the links below to get started:

Build Better Pavements: https://info.tensarcorp.com/build-bet...
Solutions for Soft Soils: https://info.tensarcorp.com/soft-soil...