3 Layers Tri-dimension Geonet Drainage Composites

Product Description

Tri-dimension composite geonet is a chemically resistant composite comprised of a 

three-dimensional extruded polyethylene geonet core, thermally laminated to non-woven geotextiles on either one or both surfaces.

Product Features

• Cost-effective substitute for thick layers of coarse-grained soil in drainage applications, providing savings on materials, transportation installation and airspace.
• Preserves aggregate resources for structural applications where alternative materials can’t be used.
• Three functions in one unit: filtration, drainage and protection.
• Rapid installation in comparison to conventional soil drainage layers.
• Wide range of product combinations allows performance driven product selection at an economical price.
• Chemically resistant polyethylene geonet and polypropylene geotextile construction provides long life in harsh environments.
• Exhibits good interface shear strength with adjacent geomembranes and soil, allowing a high factor of safety against sliding

Product Applicationrange

In landfill cover systems  geocomposites are used to drain surface water away from the 

barrier layer decreasing percolation of water into the waste.  geocomposites may also 

be used as a gas venting layer below the barrier layer to prevent the build-up of gases 

generated by degrading waste or underlying soils.

In landfill bottom liner systems geocomposites are used above the primary liner for 

leachate drainage and as a leak detection layer between the primary and secondary 

liners.  Similarly, in liquid impoundments gecomposiye Drain may be used underneath 

the primary liner as the leak detection layer.

Item

unit

Value

Unit weight

g/m²

750

1000

1300

1600

thickness

mm

5.0

6.0

7.0

7.6

Hydraulic conductivity

m/s

K×10-4

K×10-4

K×10-3

K×10-3

Elongation

%

<50

Net tensile strength

KN/m

8

10

12

14

geotextile unit weight

PET needle punched geotextile

g/m²

200-200

200-200

200-200

200-200

Filament non woven geotextile

PP high strength geotextile

Tri-dimenstional tensile strength

PET needle punched geotextile

KN/m

18

20

22

25

Filament non woven geotextile

30

35

38

40

PP high strength geotextile

35

38

40

45

Peel strength between geotextile and geonet

KN/m

3