Geocomposite Drainage Net
Introduction:
Geocomposite drainage net is a new type drainage geotextile with HDPE as its raw material. It is formed after special extrusion forming process and has special structure with three layers.The drainage geocomposite is comprised of a tri-planar geonet structure consisting of thick supporting ribs with diagonally placed top and bottom ribs, and with a thermally bonded non-supporting ribs with diagonally placed top and bottom ribs, ad with a thermally bonded non-woven geotextile. This product is capable of quickly removing subsurface water from the pavement. The product provides a void-maintaining system under high normal loads to work as a capillary break.
Parameters:
| NO. | Item | Unit | Spec./ Standard value | ||||
| 1200g/m2 | 1400g/m2 | 1600g/m2 | 1800g/m2 | 2000g/m2 | |||
| 1 | Unit weight of compound | g/m | ≥1200 | ≥1400 | ≥1600 | ≥1800 | ≥2000 |
| 2 | Thickness of compound | mm | ≥6.0 | ≥7.0 | ≥8.0 | ≥9.0 | ≥10.0 |
| 3 | Longitudinal tensile strength of compound production | KN/m | ≥16.0 | ||||
| 4 | water diversion ration of compound production | m2/s | ≥1.2×10-4 | ||||
| 5 | peel strength of network core and geotextile | KN/m | ≥0.3 | ||||
| 6 | Thickness of network core | mm | ≥5.0 | ≥5.0 | ≥6.0 | ≥7.0 | ≥8.0 |
| 7 | Tensile strength of network core | KN/m | ≥13.0 | ≥15.0 | ≥15.0 | ≥15.0 | ≥15.0 |
| 8 | Unit weight of geotextile | g/m2 | ≥200 | ||||
| 9 | Seepage coefficient of geotextile | cm/s | ≥0.3 | ||||
| 10 | Width | m | 2.1 | ||||
| 11 | Length of one roll | m | 30 | ||||
Feature:
a)Drainage is strong. (the equivalent of about one-meter thick gravel drainage)
b)High tensile strength.
c)To reduce the probability of geotextiles embedded into core, maintain long-term stability of the drainage.
d)Long-term load is under great pressure. (Can carry about 3000 ka compression load)
e)Corrosion resistance, acid and alkali resistance, long service life.
f)Construction is convenient, shorten the construction period, reduce the cost.
Application:
1.Landfill drainage;
2. Roadbed and road drainage;
3.Railway drainage, tunnel drainage, underground structure drainage;
4.The retaining back wall drainage;
5.Gardens and sports grounds drainage;
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