1. Separation
Geotextiles will prevent two soil layers of different particle
sizes from mixing with each other, as is illustrated the image
below.
2. Drainage
Geotextiles will efficiently collect superfluous water from
structures, such as rainwater or surplus water, from the soil and
discharge it.
3. Filtration
Geotextiles are an ideal interface for reverse filtration in the
soil adjacent to the geotextile. In all soils water allows fine
particles to be moved. Part of these particles will be halted at
the filter interface; some will be halted within the filter itself
while the rest will pass into the drain. The complex needle-punched
structure of the geotextile enables the retention of fine particles
without reducing the permeability of the drain.
4. Reinforcement
Heavy geotextiles can be used to reinforce earth structures by
means of fill materials. Thanks to their high soil fabric friction
coefficient and high tensile strength, they are an ideal
reinforcement solution.
5. Protection
Geotextiles are an ideal protection from erosion of earth
embankments by wave action, currents or repeated drawdown. A layer
of geotextiles can be placed so as to prevent leaching of fine
material. They can be used for rock beaching or as mattress
structures. They can even easily be placed under water.
