Drainage geonet geocomposites
Our geocomposite geonet is a cost-effective and environmentally conscious alternative to aggregate drains for various applications.
Our geocomposite geonet can effectively transmit fluids and gasses while taking up much less space compared to a sand, stone, or gravel layer. In double-lined containment applications, Our geocomposite geonet is commonly used to create an interstitial space between two geomembrane liners as part of a leak detection system.
Our geocomposite geonet have a geotextile bonded to one or both sides of a geonet. The addition of laminated geotextile layers prevents the movement of soil fines into the drainage path that could otherwise lead to clogging and reduced drainage performance longer term.
Description
Drainage Geonet is a bi-planar or tri-planner geonet with two sets of diagonally parallel-crossing HDPE strips in a round cross-sectional shape. This unique strips structure provides superior compressive creep resistance and ensures continuous flow performance over a broad range of conditions and long durations.
The lightweight and flexible Bi-Planar or tri-planar Geonet is easy to install and has long-term durability. Available in a range of sizes, Bi-planar Geonet can be suited for projects where the foundation is reasonable or the bearing capability demand is low.
Geonets are among the most proven geosynthetics drainage systems. Manufactured from two, or three strands of extruded HDPE which are overlayed across each other, this material forms a void within which water can be transmitted and reduces pore water pressure.
Benefit
Offers several advantages over traditional drainage systems
These advantages include improved hydraulic performance, increased resistance to clogging, and reduced installation time and costs.
Used in various geotechnical applications
Applications include landfill liners and caps, road and railway construction, slope stabilization, and drainage systems.
High flow under substantial loads
Equivalent to about 12″ (300 mm) of aggregate
Ideal for drainage on slopes
Application
Highway and Railway Drainage
Retaining Walls and Buried Structures
Tunnels and Underground Structures
Roof Gardens and Landscaping :Prevent water buildup, improving plant growth by 10%
Sports Fields:Ensure rapid drainage, reducing downtime by 50%
Coastal Protection:Manage groundwater to stabilize slopes, reducing erosion by 20%,
Frost Heave Control:Intercept capillary water, reducing pavement damage by 30%,
Specification:
| Properties | Standard | Unit | HDPE 6 | HDPE 7 | HDPE 8 | HDPE 9 | |
| Density | ASTM D 1505 | g/cm3 | 0.94 | 0.94 | 0.94 | 0.94 | |
| Carbon Black Content | ASTM D 1603 | % | 2 | 2 | 2 | 2 | |
| Strip Tensile Properties | ASTM D 7179 | KN/m | 10 | 12 | 14 | 16 | |
| Thickness | ASTM D 5199 | mm | 6 | 7 | 8 | 9 | |
| Hydraulic Conductivity | ASTM D 4716 | m2/s | 3.5×10-3 | 4.0×10-3 | 5.0×10-3 | 6.3×10-3 |
