Needle Punched Geotextiles

Needle Punched Geotextiles

Robust Geotextiles


RG3, RG3.3, RG4, RG5, RG6, RG7, RG8, RG9, RG11, RG14, RG17, RG19, RG22, RG25, RG30, RG40

Terram RG needle-pinched geotextiles provide a number of functions: protection and separation/ filtration. These make these thick geotextiles ideal for:

  • The protection of impermeable membranes landfill basal areas, side walls and caps, tailing lagoons, reservoirs, balancing ponds, reed beds, artificial lakes
  • To prevent soil erosion from beneath rock armour and pre-cast concrete revetments, sea shores, rivers and water channels, lakes and reservoirs

These needlepunched robust geotextiles are able to resist damage that could otherwise be caused during the placement of angular stone/rock and go on to deal with point loads in service life whether it's beneath 20m landfill waste or beneath rock for foreshore defences.

Application areas include:

  • Landfill engineering
  • Coastal and Waterways
  • Highways
  • Pipeline and utility protection
  • Landscaping

Landfill engineering

Balancing the cost/quality of the drainage stone with the level of protection that it will demand is part of the engineering process. However, the performance of the proposed combination will have to be confirmed by cylinder testing if it is to be approved in the UK by the Environmental Agency. The RG robust geotextile range means that there are grades for use with inexpensive, aggressive stone as well as for expensive, more-rounded alternatives.

Coastal and waterways engineering

The hydraulic and filtration properties of Terram standard geotextiles makes them highly effective in replacing traditional filter layers. Typically, a single layer of geotextile can replace a succession of stone filter layers. A single bedding layer of stone is laid on the geotextile and this is followed by the rock armour.

Geocomposites to save time and money

Terram RG needle punched geotextiles are also used to form composites in combination with Terram drainage nets, grids, band drains and lining membranes to form unique solutions to site-specific conditions. This means that factory-controlled manufacturing can be used to provide single products with multiple functions that will be installed in one pass, saving time and money.

Terram RG robust geotextiles were previously named Terram NP geotextiles.


TERRAM Robust geotextiles
Jointing methods for TERRAM geotextiles
RG9 Protecting storm-water lagoons liners (A483)
RG7 - Landfill Basal-cell-liner & side-slope protection/drainage (Beacon Hill LFS)
RG4, RG11 RG-SD19 Protection to Landfill basal & capping liners (Lean Quarry LFS)
RG25 & RG31 Liner protection for a deep landfill cell (Clifton Marsh LFS)
RG3 Landfill capping liner protection (Erin LFS)
RG4 & RG-SD19 Landfill cell side-wall drainage (Bryn Pica LFS)