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SEPARATION
The use of a geotextile to prevent
the intermixing of dissimilar soil layers.
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FILTRATION
The use of a geotextile to allow
the passage of fluids (most commonly water)
while preventing the uncontrolled passage
of soil particles.
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REINFORCEMENT
The use of the tensile properties
of a geosynthetic material to resist stresses
or contain deformations in soil structures.
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DRAINAGE
The use of a geosynthetic layer
to collect and transport fluids
within its own thickness.
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PROTECTION
The use of a geosynthetic material as a
stress reduction layer to prevent or
reduce damage to an adjacent surface or layer.
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