Changsha Jian-Yi New Material Co., Ltd.
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Two Fabrics and One Film The Strongest Composite Geomembrane for High-Intensity Projects
Geosynthetic composite membranes are impermeable materials that combine plastic films and non-woven fabrics. They are widely used in civil engineering to enhance the impermeability of projects.
Channel Seepage Prevention Project: Due to its excellent seepage prevention performance, composite geomembrane is widely used in channel seepage prevention projects.
Landfill: In landfills, composite geomembranes can effectively prevent the leakage of leachate, protecting the environment.
Artificial Lakes and Underground Projects: Due to its weather resistance and durability, composite geomembranes are also commonly used for waterproofing in artificial lakes and underground projects.
The composite geomembrane is mainly divided into two types:
Geotechnical fabric and film: Consists of a layer of geotechnical fabric and a layer of plastic film.
Two fabrics and one film: consists of two layers of geotechnical fabric and one layer of plastic film, offering higher strength and durability.
The construction methods of composite geomembrane include:
Burial Method: Bury the composite geomembrane in the soil, cover it with fine sand, and compact it.
Welding Method: Connect the various parts of the composite geomembrane through thermal fusion welding or extrusion welding.
High Intensity: Exhibits good tensile strength and tear resistance.
Durability: Under normal conditions of use, the service life can reach 50-70 years.
Environmentally Friendly: Suitable for environmental protection projects such as landfills and artificial lakes, reducing the impact on the environment.
To sum up, the composite geomembrane, with its excellent impermeability and wide range of applications, has become one of the indispensable materials in modern civil engineering construction.
Product Specification
Product Specification and Technical Index (GB/T 17642-2008)
| Item | Specifications | Remark | ||||||||
| Geotextile Unit Weight (g/㎡) | 300 | 500 | 600 | 700 | 800 | 900 | 1000 | 1100 | ||
| Geomembrane Thickness (mm) | 0.25-0.35 | 0.30-0.50 | ||||||||
| Nominal Fracture Strength (KN/m) | 2.50 | 7.50 | 10 | 12 | 14 | 16 | 18 | 20 | ||
| Breaking Strength (KN/m,≥,LD/TD) | 2.50 | 7.50 | 10 | 12 | 14 | 16 | 18 | 20 | ||
| Standard Intensity Corresponding Elongation Rate (%) | 30~100 | |||||||||
| CBR Burst Strength (KN,≥) | 0.70 | 1.50 | 1.90 | 2.20 | 2.50 | 2.80 | 3.00 | 3.20 | ||
| Longitudinal Tear Strength (KN,≥) | 0.05 | 0.25 | 0.32 | 0.40 | 0.48 | 0.56 | 0.62 | 0.70 | ||
| Hydrostatic Pressve (Mpa) | See List Below | |||||||||
| Peel Strength (N/cm,≥) | 6 | |||||||||
| Vertical Permeability Coefficient (cm/s) | According to design or contract mentioned. | |||||||||
| Width Variation (%) | -1.00 | |||||||||
| Specification Item |
Geomembrane Thickness (mm) | Remark | ||||||||
| 0.20 | 0.30 | 0.40 | 0.50 | 0.60 | 0.70 | 0.80 | 1.00 | |||
| Hydrostatic Pressve (Mpa) | One geotextiles with one geomembrane | 0.40 | 0.50 | 0.60 | 0.80 | 1.00 | 1.20 | 1.40 | 1.60 | |
| Two geotextiles with one geomembrane | 0.50 | 0.60 | 0.80 | 1.00 | 1.20 | 1.40 | 1.60 | 1.80 | ||