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Terrafix® is a needle-punched staple fibre
nonwoven geotextile manufactured from 100 % synthetic fibres. Its three-dimensional fibre
structure creates innumerable labyrinth-like pore openings closely
simulating the soil structure and its hydraulic properties. It's main
purpose behind retaining walls is to provide a filtering drainage
layer. This allows water to
flow away from behind the wall, reducing hydrostatic pressure and at
the same time, greatly reducing the risk of soil
erosion.
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