Drainage, separation and reinforcement of sub-bases by geotextile

Separation between the natural subsoil and the sub-base layers has proven to be an effective method since ancient times. Drainage can reduce the negative influence of confined water on the bearing capacity of the base layers. Reinforcement can improve the bearing capacity.


The utilization of Geotextiles (woven and nonwoven) improves the engineering functioning of road and railway bases fulfilling the following functions:
Separation between fine soil and coarse materials. Preventing pumping of fines from the subgrade into the base course.
Maintaining the planned subbase thickness and preventing the loss of fill material into the soft subsoil.
Uniformly distributing vertical loads over a large area, and thereby reducing the stresses on the subsoil.
Rapid and effective filtration through the Geotextile and prevention of hydrostatic pressure by drainage, which is essential to the proper functioning of the road.
Reducing differential settlements.

More Applications

  • Reflection and reduction cracking – Geogrid for Asphalt reinforcement

    Reflection cracking geogrid - The application of an interlayer between two asphalt layers can retards reflective cracking between asphalt layers.


  • Load support of roads and railways bases by Tough cells Neoloy and biaxial geogrids

    Biaxial geogrids and tough Geocells are used to stabilize and reinforce road and railway bases.


  • Lining of clay subgrades

    Lining with HDPE Geomembranes enables the clay to maintain a constant moisture content and thus prevent its swelling.