Geomembrane Product Features
- Raw Material: PE/PVC + PET/PP
- Nominal Break Strength: 5-40 kN/m
- Membrane Thickness: 0.3-1 mm.
- Standard: GB/T 17642-2025, ASTM, ISO...
- Delivery Time: Have stock.
- Packaging: 50-100 m/roll, can be customized.
- Free Samples: Available.
- MOQ: Trial or bulk orders are acceptable.
Geocomposite made of geomembrane and geotextile
A geosynthetic material made by thermally bonding geotextile and geomembrane.
Geocomposite is made by thermally bonding geotextile (short-fiber needle-punched nonwoven geotextile or filament spunbond needle-punched nonwoven geotextile) with geomembrane(PE or PVC). It is commonly a structure of "single geomembrane composite with one layer geotextile" or "single geomembrane composite with two layer geotextile". Geocomposite combines the high-efficiency seepage prevention performance of geomembrane with the filtration, protection and drainage functions of geotextile. Our products can be manufactured according to GB/T, ASTM, ISO, and other standards, and all raw materials are pure new resin.
Production Process: Thermal bonding process, under precisely controlled temperature and pressure conditions, causes the interface between the geotextile and the geomembrane to partially melt and bond, forming a robust composite structure.
Quality Control: The entire production process is monitored by automation. Strict factory inspections are conducted, to ensure that key quality control points (such as peel strength, coefficient of variation of mass per unit area, width deviation rate, etc.) fully comply with the standards.
After-sales Service: We have over one million square meters of construction experience, and our team can provide on-site construction services. We also offer remote technical guidance to assist with welding and construction.
Advantages
- Excellent mechanical properties: Compared with single-layer geomembrane and geotextile, the puncture strength and tear strength are greatly improved.
- The interface between the geomembrane and geotextile is firmly bonded: peel strength ≥ 6 N/cm
- Excellent resistance to chemical corrosion
- Construction efficiency has been greatly improved
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Standard Specificaiton for Geocomposites (made of geononwoven and geomembrane)
GB/T 17642-2025
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| Geononwoven: PET/PP | Geomembrane: PE/PVC | |||||||
| No. |
膜材标称厚度 Geomembrane Thickness mm |
0.3 | 0.4 | 0.5 | 0.6 | 0.7 | 0.8 | 1 |
| 1 |
膜材平均厚度 Geomembrane Thickness(ave.) mm |
≥0.30 | ≥0.40 | ≥0.50 | ≥0.60 | ≥0.70 | ≥0.80 | ≥1.00 |
| 2 |
成品单位面积质量偏差率 Mass Deviation Rate per Unit Area % |
-5 | ||||||
| 3 |
成品单位面积质量变异系数(CV值) Coefficient of Variation % |
≤10 | ||||||
| 4 |
耐静水压 Hydrostatic Pressure Resistance MPa |
—— | ||||||
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一布一膜 * Single Geomembrane Composite with One Layer Geotextile |
≥0.5 | ≥0.6 | ≥0.8 | ≥1.0 | ≥1.2 | ≥1.4 | ≥1.6 | |
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二布一膜 * Single Geomembrane Composite with Two Layer Geotextile |
≥0.6 | ≥0.8 | ≥1.0 | ≥1.2 | ≥1.4 | ≥1.6 | ≥1.8 | |
| 5 |
剥离强度 Peel Strength N/cm |
≥6 | ||||||
| 6 |
膜材灰分含量 Ash Content of Geomenbrane % |
≤0.5 | ||||||
| 7 |
纵横向最大负荷下伸长率 ELongation under Max Load % |
30~100 | ||||||
| 8 |
幅宽偏差率 Width Deviation Rate % |
> 0 | ||||||
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Specific Specificaiton for Geocomposites
(made of staple fiber needle-punched nonwoven geotextile and geomembrane)
GB/T 17642-2025
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| No. |
膜材标称强度 Nominal Strength kN/m 项目 Item |
5 | 8 | 10 | 12 | 14 | 16 | 18 | 20 |
| 1 |
纵横向抗拉强度 Tensile Strength（MD and XMD） kN/m |
≥5 | ≥8 | ≥10 | ≥12 | ≥14 | ≥16 | ≥18 | ≥20 |
| 2 |
顶破强力 Puncture Strength kN |
≥1.1 | ≥1.5 | ≥1.9 | ≥2.2 | ≥2.5 | ≥2.8 | ≥3 | ≥3.2 |
| 3 |
纵横向撕破强力 Tear Strength（MD and XMD） kN |
≥0.15 | ≥0.25 | ≥0.32 | ≥0.4 | ≥0.48 | ≥0.56 | ≥0.62 | ≥0.7 |
| 4 |
抗酸碱性能 (纵横向强力保持率) Acid and Alkali Resistance Strength(MD and XMD)- % retained % |
≥90 | |||||||
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Specific Specificaiton for Geocomposites
(made of filament spunbond needle-punched nonwoven geotextile and geomembrane)
GB/T 17642-2008
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| No. |
膜材标称强度 Nominal Strength kN/m 项目 Item |
10 | 12 | 14 | 16 | 18 | 20 | 25 | 30 | 40 |
| 1 |
纵横向抗拉强度 Tensile Strength（MD and XMD） kN/m |
≥10 | ≥12 | ≥14 | ≥16 | ≥18 | ≥20 | ≥25 | ≥30 | ≥40 |
| 2 |
顶破强力 Puncture Strength kN |
≥2.1 | ≥2.4 | ≥2.7 | ≥3 | ≥3.2 | ≥3.4 | ≥3.6 | ≥4 | ≥5 |
| 3 |
纵横向撕破强力 Tear Strength（MD and XMD） kN |
≥0.34 | ≥0.42 | ≥0.5 | ≥0.58 | ≥0.64 | ≥0.72 | ≥0.8 | ≥1 | ≥1.2 |
| 4 |
抗酸碱性能 (纵横向强力保持率) Acid and Alkali Resistance Strength(MD and XMD)- % retained % |
≥90 | ||||||||
- Channel and Reservoir Seepage Control:
- Geocomposites are the mainstream solution for seepage control in irrigation channels, open water conveyance channels, and reservoir basins. The geotextile layer is in direct contact with the soil, acting as a filter for drainage; the membrane layer bears the primary responsibility for seepage control.
- Landfill Covering Systems:
- In landfill cover layers, geocomposites serve as a seepage barrier between the final cover soil and the drainage layer. The geotextile surface protects the membrane while simultaneously guiding rainfall.
- Elevations and Riverbank Protection:
- In river regulation and levee reinforcement projects, geocomposites are laid under the retaining riprap to prevent seepage in the levee during high water levels, while the geotextile layer acts as a filter to retain soil.
- Artificial Lakes and Landscape Water Bodies:
- Urban landscape water bodies, golf course water hazards, and ecological wetlands require high levels of environmental friendliness and aesthetic appeal in their seepage control materials. Geocomposites can be laid directly on compacted soil, with the geotextile surface providing a good foundation for vegetation attachment.
- Tunnel and Underground Engineering Seepage Control:
- A geocomposite is laid between the initial support and secondary lining of the tunnel. The geotextile side faces the surrounding rock to guide seepage and protect the waterproof membrane; the membrane side faces the secondary lining to form the final waterproof layer.
- Tailgating Dams and Heap Leaching Sites:
- Mining engineering projects have extremely high requirements for the puncture resistance and aging resistance of seepage control materials. The high strength characteristics of long-filament geocomposites are particularly advantageous in such scenarios.
