If you’re looking for an effective way to reinforce soil, stabilise ground, or strengthen grassed areas, then geogrids could be the answer. Here’s a useful guide explaining what they are, how they work, and when to use them.
What are geogrids?
A geogrid is a geosynthetic material used to stabilise soil and reinforce weak ground. It consists of a grid-like structure that distributes loads evenly across the surface.
Geogrids are widely used in soil stabilisation and reinforcement applications. They improve sub-base performance, increase bearing capacity, and reduce the thickness of granular layers required for roads or construction platforms.
These materials are often referred to as Interlock Biaxial Geogrids.
How do geogrids work?
Geogrids have openings called apertures, which allow aggregate or soil to lock into the structure. This “interlocking” effect restricts movement, spreads loads more evenly, and increases ground stability.
By minimising lateral movement and maintaining modulus values, geogrids reinforce the base layer — ensuring long-term performance even under heavy loads.
When to use geogrids
Geogrids can be filled with grass or gravel, making them ideal for both aesthetic and functional reinforcement.
Common applications include:
- Paved and unpaved roads
- Industrial yards and storage areas
- Foundation reinforcement
- Construction working platforms
- Car parks and access routes
Interlock geogrids are available in various biaxial configurations and can also be supplied as composite materials laminated with a non-woven geotextile (such as Interlock 30G).
Benefits of geogrids
Interlock Biaxial Geogrids deliver high tensile strength, durability, and chemical resistance — making them a reliable solution for demanding construction environments.
- High tensile strength: Geogrids provide consistent strength and stiffness, mobilising high tensile forces at low strains.
- Durability: Resistant to installation damage, chemical attack, and environmental exposure — ensuring reliable performance even in harsh conditions.
- Excellent junction strength: The rigid, extruded structure of Interlock Geogrids provides superior junction integrity and long-term reinforcement.
At Cotterill Civils, we supply a wide range of geogrids for soil stabilisation, reinforcement, and erosion control. Call us today on 0121 351 3230 to speak to an expert and find the right solution for your project.
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