Why geogrid type matters
Geogrids differ in polymer, manufacturing method, aperture geometry, directional strength and long-term behaviour. Selection should begin with the engineering function rather than the product name alone.
Uniaxial geogrid
Uniaxial geogrid develops its principal tensile capacity in one direction. It is typically considered where reinforcement layers must resist outward soil forces in reinforced retaining walls and steep slopes.
Biaxial geogrid
Biaxial geogrid provides reinforcement in two principal directions. It is commonly considered for road construction, subgrade stabilisation, working platforms and granular-base reinforcement.
PVA geogrid
PVA geogrid is a specialist reinforcement option. Its suitability depends on the required stiffness, creep behaviour, installation environment and chemical conditions defined by the project.
Common geogrid applications
- Road and pavement reinforcement
- Retaining-wall soil reinforcement
- Steep-slope construction
- Working-platform stabilisation
- Railway and embankment support
How to choose the right geogrid
Review loading, soil parameters, fill material, drainage, geometry, construction sequence and required design life together. Final selection should follow the project engineer's design and the applicable specification.
