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（smooth) polyethylene geomembrane index GB/T 17643-1998
LDPE geomembrane,LLDPE geotechnical membrane,HDPE geomembrane,EVA geotechnical Film,ECB geomembrane,PVC geotechnical membrane,textured geomembrane etc.
Key words :
（smooth) polyethylene geomembrane index GB/T 17643-1998
Category :
Polyethylene Geomembrane
Details description
Description:
Features: waterproof,isolation
Products include:LDPE geomembrane,LLDPE geotechnical membrane,HDPE geomembrane,EVA geotechnical Film,ECB geomembrane,PVC geotechnical membrane,textured geomembrane etc.
（smooth) polyethylene geomembrane index GB/T 17643-1998
|
NO. |
Item |
Value |
|||
|
GL |
GH |
||||
|
GL-1 |
GL-2 |
GH-1 |
GH-2 |
||
|
1 |
tensile strength MPa |
≥14 |
≥17 |
≥25 |
|
|
2 |
elongation at break% |
≥400 |
≥450 |
≥550 |
|
|
3 |
Right-angle tear strength N/min |
≥50 |
≥80 |
≥110 |
|
|
4 |
Carbon black content1) % |
≥ 2 |
|||
|
5 |
F20 Resistance to environmental stress crackingF20 h |
-- |
-- |
-- |
≥1500 |
|
6 |
Induction time of oxidation at200℃ min |
-- |
-- |
-- |
≥20 |
|
7 |
Water vapor permeability coefficient g·cm/(c㎡2.s·Pa) |
≤1.0X10^(-13) |
|||
|
8 |
Low Temperature Impact Embrittlement Behavior of-70℃ |
pass |
|||
|
9 |
Dimensional stability % |
±3 |
|||
|
Black geomembrane requirements |
|||||
Application:
landfill,sewage or waste disposal field seepage;
Along the river,the lake dam, tailings dam, dam and reservoir area sewage channel, and a liquid storage tank (pit mine);
Subway,underground chambers and tunnels,the tunnel lining;
Subgrade and foundation of saline seepage;
Embankment, dam foundation impervious blanket and vertical impervious layer,construction of cofferdam,scrap yard;
Sea water,fresh water breeding farm.
Highway,highway,railway subgrade;expansive soil and collapsible loess waterproof layer.
Roofing seepage proofing.
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