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Geotechnics 1BZ Terram Geocomposite Drain 2 x 25m

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£406.27 Incl. VAT
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Product Description

The 1BZ Geocomposite Drain is a high-density polyethylene (HDPE) net drainage core, it also has a non-woven polypropylene geotextile filter/separator bonded to one side and an extruded (PE/EVA) geomembrane boned to the other.

Net drainage geocomposites are manufactured using Terram T1000LE, this is a unique geotextile filter which has been designed purely for use in drainage geocomposites, this is due to its high tensile modulus and ability to prevent soil ingress into the void space of the drainage core.

Manufactured from HDPE nets, the Terram drainage cores are engineered to have a good flow, even under high loading.

Typical applications would include:

  • Highways – Vertical edge-of-carriageway drains intercepts the lateral flow of ground water. Modern fin drains reduce excavation, reduce backfill quantities and reduce installation time. In-slope drainage increases geotechnical stability.
  • Retaining walls and bridge abutments – To reduce pore water pressure and avoid backfill saturation.
  • Engineered landfills – With the additional requirements of long-term chemical resistance and high compressive strength.
  • Tunnels – Ground water seepage interception between rock face and the tunnel lining.
  • Buried structures – Vertical and horizontal drains for basements, culverts, car parks and reservoirs etc.

Features & Benefits

  • High-density polyethylene net drainage core
  • High tensile modulus
  • Prevents soil ingress
  • Good flow even under high loading

Product Specifications

Roll Size: 2 x 25m

Product Documents


WIDTH 2000mm LENGTH 25m


Product Type Non-Woven

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