HDPE Geomembrane Liners
HDPE geomembrane liners for tailings storage facilities, heap leach pads, landfills and water containment. Geosynthetics Africa supplies smooth and textured liners, with specialist profiles selected to suit project requirements. Material grade, thickness and compatibility are confirmed against the manufacturer’s current documentation and the project specification. Supply, installation and QA/QC documentation are available within the agreed scope.
Technical Specification of HDPE Geomembrane Liners
HDPE geomembranes are used as containment barriers in mining, waste management and water infrastructure. GRI-GM13 specifies minimum manufacturing properties and test frequencies for smooth and textured HDPE geomembranes; project suitability must also be assessed against the design and operating conditions.
Select liner thickness and grade for the intended liquid, operating temperature, exposure conditions and protection system. Service life depends on the formulation and site conditions; a single service-life figure should not be treated as a guarantee for every HDPE liner or application. Chemical compatibility and any potable-water approvals must be confirmed for the specific product.
Geosynthetics Africa supplies smooth and textured HDPE liners, with conductive, reflective and high-temperature options subject to the selected manufacturer’s range and availability. GSE® HD is a Solmax HDPE geomembrane series; use the current grade-specific manufacturer datasheet and quality documentation to confirm compliance. Where installation is included, seam testing and handover records follow the approved project QA/QC plan, using methods appropriate to the seam type.
Typical Values for PERMEABLE PAVING SYSTEMS
Properties & Dimensions
| Testing Properties | Test Method | Unit | 1.0mm | 1.5mm | 2.0mm | 2.5mm |
|---|---|---|---|---|---|---|
| Thickness | ASTM D5199 | mm | 1.00 | 1.50 | 2.00 | 2.50 |
| Density | ASTM D792 | g/cm³ | ≥ 0.940 | ≥ 0.940 | ≥ 0.940 | ≥ 0.940 |
| Tensile strength at break | ASTM D6693 | kN/m | 27 | 40 | 53 | 67 |
| Tensile Strength at Yield | ASTM D6693 | kN/m | 15 | 22 | 29 | 37 |
| Tear resistance | ASTM D1004 | N | 106 | 168 | 224 | 280 |
| Puncture resistance | ASTM D4833 | N | 320 | 480 | 640 | 800 |
| Stress crack resistance | ASTM D5397 | hr | ≥ 500 | ≥ 500 | ≥ 500 | ≥ 500 |
| Roll width | - | m | 7 | 7 | 7 | 7 |
| Roll Length | - | m | 210 | 150 | 110 | 85 |
| Area per roll | - | m² | 1470 | 1050 | 770 | 595 |
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Three Questions To Ask Before You Order
1.What HDPE thickness should I specify for a tailings storage facility (TSF)?
2.What is the difference between smooth and double-textured HDPE - and when must I specify textured?
3.Is HDPE geomembrane compatible with heap leach solutions and cyanide?
4.Do you supply only, or do you also install? Can you manage the full scope?
5.How are HDPE seams tested - and what documentation do we receive?
6.Can you deliver HDPE geomembrane to my project site outside South Africa?
7.What is a conductive HDPE geomembrane and does my project need it?
8.How do I get a quote for HDPE geomembrane supply or installation?
Specification For The Design, Installation Of HDPE Geomembrane Liners
Installation follows the approved project method statement, panel layout and QA/QC plan. The receiving surface is inspected before deployment. Panel overlaps, anchorage, temporary restraint and welding conditions are set for the selected liner and equipment, following manufacturer guidance and the project specification.
Dual-track fusion welding and extrusion welding are used as appropriate to the seam and detail. Non-destructive testing uses the applicable method: pressurised air-channel evaluation to ASTM D5820 for dual seams, and vacuum-chamber evaluation to ASTM D5641 where suitable. Destructive peel and shear testing to ASTM D6392 is performed at the frequency and acceptance criteria defined in the approved project QA/QC plan.
Repairs are recorded and retested using the applicable method before acceptance and covering. Handover documentation is defined in the agreed scope and may include material roll records, panel layouts, weld logs, non-destructive and destructive test records, repair logs, as-built drawings and the handover certificate.
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Related Resources
Common HDPE GEOMEMBRANES Applications
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