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Composite geomembrane
Composite geomembrane is an impermeable material composed of geotextile and geomembrane. It is mainly used for anti-seepage. The width is 4-6m and the weight is 200-1500g/㎡.
Features:
The composite geomembrane has excellent physical and mechanical properties such as tensile strength, tear resistance and bursting.
Application:
Used in anti-seepage engineering fields such as highways, railways, water conservancy, subways, tunnels, landfills, etc.
◆Parameters Table
|
序
号 |
项 目
|
指标
|
|||||||
|
标称断裂强度( kN/m )
|
5
|
7.5
|
10
|
12
|
14
|
16
|
18
|
20
|
|
|
1
|
纵横向断裂强度≥( kN/m )
|
5.0
|
7.5
|
10.0
|
12.t0
|
14.0
|
16.0
|
18.0
|
20.0
|
|
2
|
纵横向标准强度对应伸长率( % )
|
30~100
|
|||||||
|
3
|
CBR顶破强力≥( kN )
|
1.1
|
1.5
|
1.9
|
2.2
|
2.5
|
2.8
|
3.0
|
3.2
|
|
4
|
纵横向撕破强力≥( kN )
|
0.15
|
0.25
|
0.32
|
0.40
|
0.48
|
0.56
|
0.62
|
0.70
|
|
5
|
耐静水压/（MPa）
|
按表2
|
|||||||
|
6
|
剥离强度≥(N/cm )
|
6
|
|||||||
|
7
|
垂直渗透系数（cm/s）
|
按设计或合同要求
|
|||||||
|
8
|
幅度偏差( %)
|
-1.0
|
|||||||
|
项 目
|
膜厚度/mm
|
||||||||
|
0.2
|
0.3
|
0.4
|
0.5
|
0.6
|
0.7
|
0.8
|
1.0
|
||
|
耐静水压/（MPa）
|
一布一膜
|
0.4
|
0.5
|
0.6
|
0.8
|
1.0
|
1.2
|
1.4
|
1.6
|
|
二布一膜
|
0.5
|
0.6
|
0.8
|
1.0
|
1.2
|
1.4
|
1.6
|
1.8
|
|
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