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GEOMEMBRANE |
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Geomembranes Essentially impermeable sheets produced from polymeric materials. Geomembranes are manufactured several ways, excluding woven methods as they would leave unacceptably large voids in the material. Suitable materials include PVC, Polypropylene, Polyethylene and HDPE |
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APPLICATION |
PRIMARY FUNCTION |
Hazardous Solid Waste Land Filled |
Impervious barrier |
Municipal Solid Waste Land Filled |
Impervious barrier |
Road Work |
Impervious barrier |
Air Field |
Impervious barrier |
Water Reservoir |
Impervious barrier |
Evaporation Pond |
Impervious barrier |
Land Filled Capping |
Impervious barrier |
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Specification of High Density PolyEthylene (HDPE) GeoMembrane |
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Property |
Test Method |
Nominal Values |
Thickness, mm |
ASTM D 751/1593/5199 |
1.0 |
1.5 |
2.0 |
2.5 |
3.0 |
Density, g/cc |
ASTM D 792/1505 |
0.94 |
0.94 |
0.94 |
0.94 |
0.94 |
Strength at Break, N/mm |
ASTM D 6693, Type IV |
34 |
52 |
69 |
86 |
103 |
Strength at Yield, N/mm |
ASTM D 6693, Type IV |
16 |
25 |
33 |
41 |
50 |
Elongation at Break, % |
ASTM D 6693, Type IV |
750 |
800 |
800 |
800 |
800 |
Elongation at Yield, % |
ASTM D 6693, Type IV |
15 |
15 |
15 |
15 |
15 |
Tear Resistance, N |
ASTM D 1004 |
146 |
222 |
293 |
369 |
445 |
Puncture Resistance, N |
FTMS 101, Method 2065 |
267 |
400 |
533 |
667 |
800 |
Carbon Black Content, % |
ASTM D 1603 |
2-3 |
2-3 |
2-3 |
2-3 |
2-3 |
Carbon Black Dispersion |
ASTM D 3015 |
A1/A2 |
A1/A2 |
A1/A2 |
A1/A2 |
A1/A2 |
Dimensional Stability, % (each direction) |
ASTM D 1204, 100°C 1hr |
±1 |
±1 |
±1 |
±1 |
±1 |
Environmental Stress
Crack Resistance, hr |
ASTM D 1693, Cond. B |
>2000 |
>2000 |
>2000 |
>2000 |
>2000 |
Low Temperature Brittleness, °C |
ASTM D 746, Cond. B |
<-84 |
<-84 |
<-84 |
<-84 |
<-84 |
Oxidative Induction
Time, minutes |
ASTM D 3895,
200°C Pure O2, 1 atm |
100 |
100 |
100 |
100 |
100 |
Ozone Resistance |
ASTM D 1149, 7 days 100ppm |
No Cracks |
No Cracks |
No Cracks |
No Cracks |
No Cracks |
Water Absorption, % wt. change |
ASTM D 570 |
<0.01 |
<0.01 |
<0.01 |
<0.01 |
<0.01 |
Moisture Vapour Transmission, g/m² |
ASTM E 96 |
<0.001 |
<0.001 |
<0.001 |
<0.001 |
<0.001 |
Melt Flow Index, g/10 minutes |
ASTM D 1238, Cond. 190/2.16 |
<=1.0 |
<=1.0 |
<=1.0 |
<=1.0 |
<=1.0 |
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