Enhance Your Project with Compound Geomembrane Perfect for Water
Conservancy Environmental Protection and Transportation
Product Introduction
Composite geomembrane is a multi-functional impervious material
that combines the advantages of geotechnical fabric and
geomembrane. It is widely used in various fields such as water
conservancy projects, environmental protection, and transportation
construction. Here is a detailed introduction to composite
geomembranes.
Product Properties
Composite geomembranes possess a variety of excellent properties,
including good thermal resistance, cold resistance, and chemical
stability, high tensile strength, anti-aging and corrosion
resistance. They also have excellent dielectric properties,
resistance to environmental stress cracking, and increased friction
coefficients between the membrane and the base layer due to
non-woven fabric, providing good skid resistance. In addition,
composite geomembranes can withstand plant root penetration,
maintain waterproof function for a long time, and form a
high-strength waterproof layer with strong resistance to backwater
pressure. They are resistant to perforation, bursting, tearing, and
fatigue.
Product Application
Composite geomembrane is widely used in many fields, such as
hydraulic engineering reinforcement of reservoirs, lakes and
canals, because of its excellent impermeability, tensile strength
and other mechanical properties.
♦ Municipal construction: includes impervious lining for subways,
basements and tunnels.
♦ Environmental Protection: anti-seepage treatment of landfill.
♦ Agricultural Water Conservancy: anti-seepage pavement of
irrigation system.
♦ Traffic facilities: highway, railway subgrade anti-seepage
treatment.
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 | |
