Geogrids

Geogrids are geosynthetic materials engineered with a grid-like structure that reinforces soil by confining aggregate particles within their apertures. This interlocking mechanism enhances load distribution, reduces deformation, and improves the structural integrity of subgrades. There are three primary types of geogrids used in site development: uniaxial, biaxial, and triaxial. Uniaxial geogrids provide high tensile strength in one direction and are commonly used in retaining walls and steep slope reinforcement. Biaxial geogrids offer strength in both longitudinal and transverse directions, making them ideal for base stabilization in roads, parking lots, and railways. Triaxial geogrids, such as Tensar’s TriAx® series, feature a triangular aperture design that distributes loads radially, offering superior confinement and stiffness for trafficked surfaces and construction platforms. Advanced products like InterAx® geogrids further enhance performance with optimized interlock and durability for demanding applications like industrial yards, ports, and rail track beds. While planar geogrids are widely used, 3D systems like GEOWEB® offer additional confinement and load support, especially in soft-soil conditions. Geogrids are essential in modern site development for reducing excavation needs, extending pavement life, and improving long-term performance across a range of infrastructure projects.