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Drainage & Gas Venting Geocomposite

A highly flexible, strong Polyethylene material with a cuspated core, Pozidrain has a non
woven geotextile filter fabric bonded either one or both sides. Pozidrain is a sustainable,
environmental alternative to traditional filter stone.

Used predominantly for Landfill applications such as leachate collection, this product
is also highly suitable for gas venting, groundwater drainage collection, capillary break
layers, vertical cut-off trenches, leakage detection layers, embankment drainage and
slope stabilisation.
Gas Barrier Installation in a newly built Primary School
Among its many benefits the material:

• Is easy to handle
• Eliminates filter stone
• Creates volume in landfill
• Allows use of lower specification backfill materials
• Reduces excavation and backfill
• Offers high impact and crush strength
• Has a high flow capacity
• Acts as a protection to the geomembrane
• Allows ease and speed of installation without specialist equipment
• Greatly reduces traffic volumes compared to drainage stone
Landflex HC Hydrocarbon Barrier
Standard roll dimensions:
4.4m wide x 100m
0.915m wide x 50m

Landflex Gasflow 25

Landflex Gasflow 25

Page 9 Specialist Gas Membranes