Composite geomembrane
The introduction and features of the composite geomembrane:
Composite geomembrane is an impermeable material that compounded with geotextiles and geomembrane. It is mainly used for seepage control and drainage and reinforcement. It divides into one cloth one membrane and two cloth one membrane, width 1-6m,weight range is 200-1500g/m2.The geomembrane is against drawing, tearing resistance, and high CBR plunger strength, can meet the need of civil engineering such as water conservancy, municipal administration, building, traffic, subway, tunnel etc. Because of selecting high polymer materials for use and adding the aging-resistant materials in the production technology, it can use in the unconventional temperature environment.
The characteristics of composite geomembrane:
1, Integrating anti-seepage, filter and drainage effect. Have a combination of isolation and reinforcement, and other functions.
2, Composite high strength, high peel strength, and puncture strength.
3, Drainage capability is strong, big, small expansion coefficient, friction coefficient.
4, Ageing resistance performance is good, adapt to the wide temperature range, stable quality.
Composite geomembrane is widely used in water conservancy, environmental protection, construction, transportation, tunnel, etc.
Composite geomembrane performance parameters:
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Item
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Index
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Weight per sq.m.(g/m2)
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400
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500
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600
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700
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800
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900
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1000
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|
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Membrane thickness mm
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0.25-0.35
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0.30-0.50
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Breaking force KN/m
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5.0
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7.5
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10.0
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12.0
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14.0
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16.0
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18.0
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|
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Breaking elongation %
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30-100
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CBR bursting strength KN
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1.1
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1.5
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1.9
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2.2
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2.5
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2.8
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3.0
|
|
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Ripping strength KN
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0.15
|
0.25
|
0.32
|
0.40
|
0.48
|
0.56
|
0.62
|
|
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Stripping strength N/cm
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≥6
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≥6
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Hydrostatic pressure
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Membrane thickness
mm
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0.2
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0.3
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0.4
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0.5
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0.6
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0.7
|
0.8
|
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one cloth one membrane Mpa
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0.4
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0.5
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0.6
|
0.8
|
1.0
|
1.2
|
1.4
|
|
|
two cloth one membrane
Mpa
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0.5
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0.6
|
0.8
|
1.0
|
1.2
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1.4
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1.6
|
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