3RFoam Application:

LANDFILL CAPPING

Special provisions are required at waste and residue landfill capping to prevent the soil from being contaminated. One of the main provisions is a waterproof seal. This seal consists of a sealing layer that prevents water working its way into the waste and/or residues. Another layer, consisting of a drainage layer, which is required here, and soil, is placed on top of this waterproof layer.

The drainage and protective mats by 3RFoam are made from high quality, closed-cell, cross-linked, polyethylene flakes.

Advantages for use at landfill capping:

• Compact yield high efficiency drainage yield (increases the capacity of the dump).
• Simple to handle.
• Prevents the use of primary raw materials that are often scarce.
• Environmentally friendly product.
• Fast and cost effective to install.
• High vertical drainage due to the open structure of the thermally linked XPE flakes.
• The grooves on the underside of the
  drainage mat ensure extremely high
  transmission of water (horizontal water
  removal), so that extremely long inclines
  can be bridged and intermediate drainage is often not necessary.

Technical Data:
Material: 100% cross-link, closed cell PE foam
Density: approx. 2lbs to 4lbs per cub/ft
Weight: approx. 0.57lbs/sq/ft
Water transmissivity & permeability with load of 20 kN applied: Kh (horizontal) 3.6 x 10-2 m/s; Kv (vertical) 3.2 x 10-2 m/s