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Terram Geocomposite Drains

Product Code: Terram-Drainage-Pro
Out of stock

Terram Geo-composite drains are manufactured by bonding together textiles, membranes and nets in different combinations to create easier-to-install replacements for conventional granular layers. The textile provides the filter function so this allows liquids and gases to pass into the net core but prevents soil particles from washing into and clogging the core. The net collects the liquids and gases which can then be conveyed to collection points. Membranes are used to provide the barrier function and prevent the passage of liquids and the majority of gases.

Terram Geo-composite drains offer:

  • A robust to survive installation and service life
  • A stable under load to resist deformation that could ultimately restrict flow
  • Offer good chemical resistance

Terram Geo-composite drains filter are:

  • Offer apparent pore size to suit the soil and prevent the ingress of fines
  • Provide sustained performance without blocking

The benefits of using Terram composite drains include:

  • High-volume flow paths for liquids and gases
  • Lightweight and easy to handle
  • Quick and easy to install
  • Cost-effective replacement for primary natural resources
  • Manufactured in the UK to high standards using state-of-the-art lines
  • Reduced environmental impact by avoiding the use of natural-occurring minerals

Typical applications for Terram Geo-composite drains:

  • Highways: vertical edge-of-carriageway drains intercept 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 requirement 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, reservoirs, etc.
  • Roof gardens: Green roof systems require lightweight components capable of high in-plane water flow, good resistance to creep and high flow rates.

Terram Geo-composite drains Available:

1B, 1B1, 1BH1, 1BZ, 1C1 & 1E1


PRODUCT B1 1B1 1BZ 1C1 1E1
Roll Width (m) 2.0/3.8*/4.0 2.0/3.8*/4.0 2.0/3.8*/4.0 2.0/3.8*/4.0 2.0/3.8*/4.0
Roll Length (m) 25/50/100 25/50/100 25/50/100 25/50/100 25/50

*special order online

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Made In The UK

Terram Geo-composite drains are manufactured by bonding together textiles, membranes and nets in different combinations to create easier-to-install replacements for conventional granular layers. The textile provides the filter function so this allows liquids and gases to pass into the net core but prevents soil particles from washing into and clogging the core. The net collects the liquids and gases which can then be conveyed to collection points. Membranes are used to provide the barrier function and prevent the passage of liquids and the majority of gases.

Terram Geo-composite drains offer:

  • A robust to survive installation and service life
  • A stable under load to resist deformation that could ultimately restrict flow
  • Offer good chemical resistance

Terram Geo-composite drains filter are:

  • Offer apparent pore size to suit the soil and prevent the ingress of fines
  • Provide sustained performance without blocking

The benefits of using Terram composite drains include:

  • High-volume flow paths for liquids and gases
  • Lightweight and easy to handle
  • Quick and easy to install
  • Cost-effective replacement for primary natural resources
  • Manufactured in the UK to high standards using state-of-the-art lines
  • Reduced environmental impact by avoiding the use of natural-occurring minerals

Typical applications for Terram Geo-composite drains:

  • Highways: vertical edge-of-carriageway drains intercept 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 requirement 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, reservoirs, etc.
  • Roof gardens: Green roof systems require lightweight components capable of high in-plane water flow, good resistance to creep and high flow rates.

Terram Geo-composite drains Available:

1B, 1B1, 1BH1, 1BZ, 1C1 & 1E1


PRODUCT B1 1B1 1BZ 1C1 1E1
Roll Width (m) 2.0/3.8*/4.0 2.0/3.8*/4.0 2.0/3.8*/4.0 2.0/3.8*/4.0 2.0/3.8*/4.0
Roll Length (m) 25/50/100 25/50/100 25/50/100 25/50/100 25/50

*special order online