DuraFlow GNG
DuraFlow GNG is a three-dimensional composite product consisting of a drainage core and nonwoven geotextile for drainage application.
DuraFlow GNG is used extensively to drain water or gas in various applications. In landfill engineering, DuraFlow GNG serves three functions at once; filtration, protection and drainage, when installed directly above a geomembrane.
The ability of DuraFlow GNG to passively relieve water pressure makes it ideal for drainage over buried structures and for road edge strip drain applications. The filter geotextile and the drainage core can be efficiently dimensioned to meet the required drainage capacity. DuraFlow GNG is also used successfully as a drainage layer in the construction of buildings, tunnels and roofs.
Frequently Asked Questions
DuraFlow GNG uses a three-dimensional matrix core while DuraFlow T uses a biplanar net. The crush and flow rate data is different for both products, but in practice, they do the same job and are often interchangeable.
Yes to a certain degree. In practice, the DuraFlow GNG will still function with a very high standard stress applied.
Benefits & Features
- Filtration, protection and drainage in one product
- Excellent in-plane flow properties and long term hydraulic performance
- Replaces natural drainage aggregate
- Ideally suited for steep slope application due to excellent shear properties
Specifications
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