Environmental stress-crack resistance
The product specification includes performance requirements related to environmental stress cracking.
HDPE Geomembrane (GH-1)
High-density polyethylene geomembrane for seepage control and containment in civil, environmental and water-management projects.
Manufactured from MDPE and HDPE using a blown-film process, GH-1 geomembrane is available in multiple thicknesses and widths for lining and seepage-control applications.
Product Overview
0104
GH-1 is a polyethylene geomembrane manufactured from MDPE and HDPE using a blown-film process. It is used as a barrier layer in applications requiring seepage control, waterproofing and separation from the surrounding ground.
Typical applications include municipal environmental projects, water-conservancy works, landscape water features, transportation infrastructure, agricultural water-management projects and aquaculture facilities.
Product facts
- Material
- MDPE / HDPE
- Manufacturing process
- Blown-film process
- Thickness range
- 0.3–3.0 mm
- Width
- 4–9 m
- Length
- According to project design and customer requirements
- Service temperature
- −60°C to +60°C
- Typical applications
- Environmental, hydraulic, transportation, agricultural and aquaculture projects
- Applicable standards
- GB/T 17643-2011; JT/T 518-2004
Key Features
Low-temperature resistance
The material is specified for use across a broad service-temperature range and includes low-temperature performance requirements.
Tensile performance
Tensile yield and breaking-strength requirements increase with membrane thickness.
Tear and puncture resistance
Thickness-dependent tearing and puncture requirements are defined for the available specifications.
Dimensional stability
The technical specification includes dimensional-stability and oxidative-induction-time requirements.
Technical Specifications
Product standards
GB/T 17643-2011
JT/T 518-2004
JT/T 518-2004
Technical data reference
GH-1 Technical Specification
| Property | 0.30 mm | 0.50 mm | 0.75 mm | 1.00 mm | 1.25 mm | 1.50 mm | 2.00 mm | 2.50 mm | 3.00 mm |
|---|---|---|---|---|---|---|---|---|---|
| Nominal thickness — mm | 0.30 | 0.50 | 0.75 | 1.00 | 1.25 | 1.50 | 2.00 | 2.50 | 3.00 |
| Average thickness — mm | ≥ 0.30 | ≥ 0.50 | ≥ 0.75 | ≥ 1.00 | ≥ 1.25 | ≥ 1.50 | ≥ 2.00 | ≥ 2.50 | ≥ 3.00 |
| Thickness limit deviation — % | −10 | −10 | −10 | −10 | −10 | −10 | −10 | −10 | −10 |
| Density — g/cm³ | ≥ 0.940 | ≥ 0.940 | ≥ 0.940 | ≥ 0.940 | ≥ 0.940 | ≥ 0.940 | ≥ 0.940 | ≥ 0.940 | ≥ 0.940 |
| Property | 0.30 mm | 0.50 mm | 0.75 mm | 1.00 mm | 1.25 mm | 1.50 mm | 2.00 mm | 2.50 mm | 3.00 mm |
|---|---|---|---|---|---|---|---|---|---|
| Tensile yield strength, MD/CD — N/mm | ≥ 4 | ≥ 7 | ≥ 10 | ≥ 13 | ≥ 16 | ≥ 20 | ≥ 26 | ≥ 33 | ≥ 40 |
| Tensile breaking strength, MD/CD — N/mm | ≥ 6 | ≥ 10 | ≥ 15 | ≥ 20 | ≥ 25 | ≥ 30 | ≥ 40 | ≥ 50 | ≥ 60 |
| Yield elongation, MD/CD — % | — | — | — | ≥ 11 | ≥ 11 | ≥ 11 | ≥ 11 | ≥ 11 | ≥ 11 |
| Elongation at break, MD/CD — % | ≥ 600 | ≥ 600 | ≥ 600 | ≥ 600 | ≥ 600 | ≥ 600 | ≥ 600 | ≥ 600 | ≥ 600 |
| Property | 0.30 mm | 0.50 mm | 0.75 mm | 1.00 mm | 1.25 mm | 1.50 mm | 2.00 mm | 2.50 mm | 3.00 mm |
|---|---|---|---|---|---|---|---|---|---|
| Right-angle tearing load, MD/CD — N | ≥ 34 | ≥ 56 | ≥ 84 | ≥ 115 | ≥ 140 | ≥ 170 | ≥ 225 | ≥ 280 | ≥ 340 |
| Puncture resistance — N | ≥ 72 | ≥ 120 | ≥ 180 | ≥ 240 | ≥ 300 | ≥ 360 | ≥ 480 | ≥ 600 | ≥ 720 |
| Property | Requirement |
|---|---|
| Carbon black content — % | 2.0–3.0 |
| Carbon black dispersion | Among 10 test results, no more than one result may be Grade 3. Grade 4 and Grade 5 are not allowed. |
| Oxidative Induction Time (OIT) | ≥ 60 min |
| Low-temperature impact brittleness | Pass |
| Water vapor permeability coefficient | ≤ 1.0 × 10⁻¹³ g·cm/(cm²·s·Pa) |
| Dimensional stability — % | ±2.0 |
| Property | Requirement |
|---|---|
| Incision | Straight, without obvious sawtooth edges. |
| Cracks, delamination and perforation repair points | Not allowed. |
| Water marks and mechanical scratches | Not obvious. |
| Crystal points, hard particles and impurities | For defects from 0.6–2.0 mm, no more than 10 per square metre; defects larger than 2.0 mm are not allowed. |
| Bubbles | Not allowed. |
Technical Notes
- Performance requirements for thicknesses not listed in the table are determined according to the interpolation provisions of the applicable specification.
- Carbon black content and carbon black dispersion requirements apply to black geomembrane.
- Product color may be agreed between supplier and customer.
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Useful information to provide
- Application
- Required thickness
- Required width
- Quantity
- Project location
- Delivery destination
- Applicable standard or project specification