Durability and Economy Compound Geomembrane for Environmental
Protection Projects
Product Introduction
Compound geomembrane is an impermeable material made by combining
geotechnical fabrics with geomembranes. It uses plastic film as the
base material for seepage prevention and is combined with non-woven
fabric to form a geotechnical anti-seepage material. It is a
commonly used type of geotechnical composite material.
Product Properties
• Enhanced impermeability
• Durability
• Strong Adaptability
• Construction convenient
• Economy
Product Application
Composite geomembranes are suitable for various projects such as
water conservancy, chemical industry, construction, transportation,
subway, tunnel, waste treatment sites, etc. They are also used for
reinforcing railway subgrade, maintaining highway pavement,
protecting sports venues, dams, and water conservancy structures,
isolating engineering buildings, tunnels, coastal beaches, land
reclamation, and environmental protection projects.
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 | |
