ASTM Chemical Corrosion Resistance Smooth HDPE Geomembrane For
Mining Industry
HDPE smooth geomembrane is made from high grade polyethylene raw
material,
adding carbon black ,antioxidant, anti-aging and UV resistance
component.
It adopted the first class automatic production equipment and
three-layer pressing technology.
All products are in accordance with GB/GRI/ASTM GRI 13 GRI17
standard.
0.5mm or 0.75mm-thickness is used for pond liner
1.5mm-thickness is used for landfill
2.0mm-thickness is used for dam liner
Benefits of HDPE
The most chemically resistant member of the polyethylene family due
to its dense configuration.
Field welded with hot wedge welders and extrusion welders. These
factory quality welds are virtually stronger than the sheet itself.
The best QC-QA testing capabilities in the marketplace.
No need to cover the liner because it is UV stable =
cost-effective.
Available in roll stock and come in varying thicknesses ranging
from 20 to 120 mil depending on your requirements.
Applications of HDPE
- Irrigation ponds, canals, ditches & water reservoirs
- Mining heap leach & slag tailing ponds
- Golf course & decorative ponds
- Landfill cells, covers, & caps
- Wastewater lagoons
- Secondary containment cells/systems
- Liquid containment
- Environmental containment
- Soil Remediation
Specification of HDPE
| No. | Properties | Test Method | Test Value |
| 1 | Thickness(mm) | ASTM D5199 | 0.50 | 0.75 | 1.00 | 1.25 | 1.50 | 2.00 | 2.50 | 3.00 |
| 2 | Density (g/cm2) | ASTM D1505 | 0.939 |
| 3 | Tensile Propeties | | |
| Yield Strength(N/mm) | ASTM D6693 | 7 | 11 | 15 | 18 | 22 | 29 | 37 | 44 |
| Break Strength(N/mm) | 13 | 20 | 27 | 33 | 40 | 53 | 67 | 80 |
| Yield Elongation % | Type IV | 12 |
| Break Elongation % | 700 |
| 4 | Tear Resistance/N | ASTM D1004 | 62 | 93 | 125 | 156 | 187 | 249 | 311 | 374 |
| 5 | Puncture Resistance/N | ASTM D4833 | 160 | 240 | 320 | 400 | 480 | 640 | 800 | 960 |
| 6 | Stress Crack resistance/hr | ASTM D5397 (App.) | 300 |
| 7 | Carbon Black | |
| Carbon Black Content % | ASTM D1603 | 2.0-3.0 |
| Carbon Black Dispersion | ASTM D5596 | Carbon black dispersion(only near spherical agglomerates)for 10
different views 9 in categories 1 or 2 and 1 in category 3 |
| 8 | Oxidative Induction Time(OIT) | |
| Standard OIT/min | ASTM D3895 | 100 |
| High Pressure OIT/min | ASTM D5885 | 400 |
| 9 | Oven Aging at 85°C | |
| Standard OIT-% retained after 90 days | ASTM D3895 | 55 |
| High pressure OIT-% retained after 90 days | ASTM D5885 | 80 |
| 10 | UV Resistance | |
| Standard OIT retained after 1600 hrs | ASTM D3895 | 50 |
| High pressure OIT retained after 1600 hrs | ASTM D5885 | 50 |
| 11 | Low tempreture impact brittle property at -70°C | _ | Pass |
| 12 | Permeability g·cm/(cm2)·Pa | _ | ≤1.0×10-13 |
| 13 | Dimensional Stability/% | _ | ±2 |
Product standards and purchase recommendations of HDPE
·. Implementation standards: National standard GB/T17643-2011,
Urban Construction CJ/T234-2006, some scenes need to meet the
American standard GRI-GM13.
· Purchase points: Select thickness (0.2-3.0mm) and surface type
(glossy/rough) according to project requirements, and give priority
to raw material products to improve durability.
