Product Description

                                 4mm thickness two strands geonet for dams usuage

1.Product description:

The best choice for drainage applications requiring filtration to keep silt and soil particles from clogging flow or when you need increased friction characteristics that bonding a geotextile to a geonet will produce.
Geocomposite Drainage network is designed to replace one to two feet of traditional aggregate while providing drainage under site loads, gradients and site conditions.
It is available in both single-sided and double-sided products with
geonet core thicknesses from 5mm to 8mm and fabric ranging from 1.6 to 3.2 mm.The geotextile is bonded to the geonet with a hot knife application-allowing for high bond strength without the reduction of transmissivity values of other processes.

2.Product use:

Mainly used for tunnels, dams,municipal engineering, reservoir, slope protection and drainage engineering effect is remarkable.

3.Product features:

1. Strong drainage (equivalent to one meter thick gravel drainage).
2. High tensile strength.
3. Reduce soil fabric embedded into core probability, maintain long-term stability of the drainage.
4. Long-term under high load (can bear about 3000 ka compression load).
5. Corrosion resistance, acid and alkali resistant, long service life.
6. Construction is convenient, shorten the construction period, reduce cost.

4.The contrast of composite drainage net and natural grit drainage layer

Application composite geonet for drainage Natural gravel
Conducting and discharging Pass through strict quality control production line and have stable performance and good property of conducting water The traditional gravel have complex composition. Its actual drainage property is much lower than laboratoty data for its contains of sand and dust.
Load/protection Light, no more extual load on geomembrane and waste. Anti—pull, anti-compress, anti-impact and can prevent geomembrane from damage. Pressure on the waste, the keen stone can puncture and damage geomembrane. Often need other safeguard, such as thicker geotextile.
Function Four functions: drainage, separation, filtration and protection. Only drainage function, easy be blocked, can need accessorial filtration system.
Construction and installation Fast installation, easy for construction, without heavy machinery and professionals. Construction speed is 5-10 times of gravel. Slow installation, bulky and heavy, need heavy machinery, high cost and have more difficulties with slope degree is more than 1v:4H.
Environment Raw material is polyethylene, nontoxic, no pollution, 100 % recyclable products. Relatively speaking, the gravel is scarce and precious resources. The ecological environment will be destroyed when people mine gravel.

5.Product specification

Drainage network core                                      Specification
Unit Weight(g/m2)       750     1000     1300     1600     1800
Thickness(OV=20pa, mm)       5.0        6.0       7.0      7.6       8.0
Hydraulic Conductivity(m/s) K×10-4 K×10-4 K×10-3 K×10-3 K×10-3
Elongation Rate(%)                                               < 50
Tensile Strength(core network, KN/m) 8 10 12 13 14
Geotextiles(g/m2)                                           200-200

Above specifications is the common type,We can make to order according to the special request of yours.

6.Related pictures: