A geogrid is geosynthetic material used to reinforce soils and similar materials. Soils pull apart under tension. Compared to soil, geogrids are strong in tension. This fact allows them to transfer forces to a larger area of soil than would otherwise be the case.[citation needed].
Geogrids are commonly made of polymer materials, such as polyester, polyvinyl alcohol, polyethylene or polypropylene. They may be woven or knitted from yarns, heat-welded from strips of material, or produced by punching a regular pattern of holes in sheets of material, then stretched into a grid.Geogrid is typically used for soil reinforcement applications such as retaining walls, steepened slopes, embankments, sub-grade stabilization, embankments over soft soils and waste containment applications.
How Does Geogrid Work?
Geogrids increase soil stability by redistributing loads over greater areas and lending the soil into which they are installed their tensile strength. The geometric grid pattern and stiff but flexible material of the geogrid has good tensile strength and can resist stresses that soil — particularly nutrient-poor, eroded, or uncovered soil — does not. Soil settles into the apertures of the geogrid, strengthening the soil.
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