Component Supply
Geocomposite Drainage Systems
Supporting efficient water flow, filtration and protection in engineered drainage systems.
Geotextiles in geocomposite Drainage Systems
Geocomposite drainage systems are designed to combine different geosynthetic materials into one functional solution. They are used where water needs to be collected, filtered and guided away from structures, soils or sensitive layers in a controlled and reliable way.
Our needle-punched nonwoven geotextiles can be integrated into geocomposite drainage systems as filter, separation and protection layers. Combined with drainage cores, grids, nets or other engineered components, the geotextile helps retain fine particles while allowing water to enter and move through the drainage system.
Without a suitable geotextile filter layer, fine soil particles can migrate into the drainage core and gradually reduce its flow capacity. This can lead to clogging, slower water discharge and increased pressure on the surrounding structure or barrier system.
By supporting filtration, drainage and protection within the composite system, our geotextiles help maintain long-term performance of the layer in applications such as retaining structures, foundations, landfill systems, tunnels, roofs and other technical drainage environments.
Key Benefits
- Supports filtration by retaining fine particles while allowing water flow
- Helps prevent clogging within drainage composite systems
- Separates soil, aggregate, membrane or drainage core layers
- Contributes to efficient water collection, transport and discharge
- Protects sensitive components from puncture, abrasion and mechanical stress
- Can be integrated into different composite material designs
Example of a Layer Structure
In drainage composite materials, nonwoven geotextiles are typically combined with a drainage core or other technical layers. The exact structure depends on the final application, required flow capacity and system design.
- Soil, aggregate or cover layer
The surrounding material from which water needs to be filtered or drained. - Nonwoven geotextile filter layer
Installed on one or both sides of the composite to retain fine particles while allowing water to enter the drainage system. - Drainage core
A structured core, grid or drainage layer that creates space for water to flow through the composite. - Optional protection or separation layer
Where required, an additional geotextile or technical layer can help protect membranes, liners or other sensitive surfaces. - Supporting structure or barrier layer
The surface, membrane, wall, foundation or engineered layer that the drainage composite is designed to protect or support.
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