Geotextiles are engineered fabrics that are used in a variety of civil engineering and construction projects. In road construction, geotextiles have several important applications.

Geotextiles for highways

A typical application of geotextiles in road construction is for separation and filtration. Nonwoven and woven geotextiles can be used to separate different layers of soil or aggregate, helping to prevent the mixing of materials and ensuring that each layer performs its intended function. Different types with varying characteristics are available to accommodate different site conditions.

Next to that, geotextiles can be used in road construction for reinforcement. Geotextiles can be used to reinforce soil in order to improve its strength and stability. For example, geotextiles can be implemented to reinforce embankments and slopes, to stabilize subgrades, or to provide a base for roads, bridges, and other structures. Geotextiles can also be used asphalt and concrete works, helping to improve the durability and lifespan of these materials.

Specific geotextile products are available for installation on a bituminous tack coat to act as a stress absorbing membrane interlayer. This layer absorbs stresses and reduces the amount of cracking due to deformations.

Finally, geotextiles and geocomposites are used in road construction for drainage. These can be used to create a drainage layer that allows water to pass through and evacuate from the structure while still providing structural support. This is particularly useful in areas with high levels of precipitation, as it helps to prevent the build-up of water and minimizes the risk of damage to the road. This is often used in combination with a drainage system next to the road, such as a drainage trench or Findrain, to manage the water.


Typical applications

  • Roads
  • Highways


  • Reinforcement
  • Separation and Filtration
  • Drainage


Overall, geotextiles are a versatile and valuable tool in road construction, with several important applications including reinforcement, filtration, separation, and drainage.

Case studies

Additional information

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