Why use geosynthetics in road construction?
Road performance depends on the interaction between the subgrade, granular layers, drainage and traffic loading. Geosynthetic materials introduce separation, reinforcement, filtration, drainage or confinement where the natural ground and conventional layers need additional support.
Geotextile for road construction
A suitable geotextile can separate weak subgrade from imported aggregate while allowing controlled water movement. This helps preserve layer integrity and reduces contamination of the granular base by soil fines.
Geogrid for road reinforcement
Geogrid interacts with aggregate to restrain lateral movement and form a mechanically reinforced layer. Product selection and placement should be matched to aggregate grading, subgrade condition and the pavement design.
Geocell for road construction
Expanded geocell panels confine infill within a three-dimensional cellular structure. They can support load distribution, surface stability and construction access on variable ground.
Road subgrade stabilisation
- Separation of soil and granular layers
- Reinforcement and aggregate confinement
- Filtration and controlled drainage
- Erosion protection at shoulders and embankments
- Construction access over weak formations
Selecting a road geosynthetic system
Traffic, subgrade strength, drainage, available fill, pavement structure and construction sequence must be assessed as one system. Park can help project teams review suitable product families against the specified application requirements.
