Drainage Net

By admin on Mar 28 in Drainage Board.

Drainage Net, also called Composite Geonet, is a two or three-layer three-dimensional drainage geosynthetic product which are often made with polypropylene PP or regenerated HDPE (geonet) and covered with double-sided thermally heat-bonded nonwoven geotextile on both sides or one side.  BPM brand drainage net has excellent performance than traditional draining gravel. So it becomes a good alternative for gravel in drainage application. Our drainage net is widely used for landfill, railway system drainage, road drainage, tunnel and retaining wall.

Description

Drainage Net, also called Composite Geonet, is a two or three-layer three-dimensional drainage geosynthetic product which are often made with polypropylene PP or regenerated HDPE (called geonet) and covered with single- or double-sided thermally heat-bonded nonwoven geotextile on both sides or one side.
The geonet has high drainage performance which is made of high quality polyethylene resin, adding 2-3% carbon black, anti-UV and anti-oxidant processed by special extruding technology. BPM brand drainage net has excellent performance than traditional draining gravel. The 3D composite drainage net combines the characteristics and functions of geonet and geotextile, it has the comprehensive charateristics of anti-filtration, good drainage, air permeability and high strengthen and  protection reinforcement. It is an ideal new drainage geo material.

Drainage Net Specifications

Property Unit BC63/D200 BC70/D200 BC80/D200 BC90/D200 Test Standard
Drainage Net Specification
Hydraulic conductivity (MD) m2/s 2.8×10-3 3.2×10-3 4.0×10-3 x10-3  ASTM D4716
 Puncture Resistance  KN/m  0.17  0.17  0.17  0.17  ASTM D7005
Core Material Geonet Specification
Thickness mm 6.3 7 8 9 ASTM D5199
 Density g/cm-3  0.94  0.94  0.94 0.94  ASTM D1505
 Carbon Black Content  %  2  2  2  2  ASTM D1603
 Tensile strength (MD)  kN/m  8 10  12  14 ASTM D7199
 Hydraulic conductivity (MD) m2/s 8 10  12 14 ASTM D4716
Geotextile Specification
Unit weight g/m2  200 200 200 200
Geotextile type       Continuous filament non-woven geotextile

Drainage Net Features

  • Share the feature of Geonet and Geotextile
  • Good permeability
  • Strong drainage ability
  • High tensile strength
  • High chemical resistance stability
  • High friction coefficient
  • Effectively keep sand and gravel particles out to maintain long-term stable drainage
  • Good corrosion resistance, good acid and alkali resistance
  • Long service life
  • Easy deployment

Drainage Net Applications

Three dimensional drainage net can be installed under the road base to prevent sand and gravel into geonet and provide effective drainage and reinforcement at the same time, it can also installed between the foundation and base to facilitate drainage. Drainage net is widely used in railway, tunnel, highway, municipal, dam, slope protection, garbage landfill, wall back garden, and field drainage reinforcement projects.

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