900g Composite Geomembrane High-Performance Material for
Anti-Seepage in Civil Engineering
Product Introduction
Composite geomembrane is an impermeable material composed of
geotextile and geomembrane, which is mainly used for anti-seepage.
It has high tensile, tear resistance, blasting and other physical
and mechanical properties, to meet the Water Conservancy,
construction, transportation, Subway, tunnel and other civil
engineering needs. Due to the selection of polymer materials and
the addition of anti-aging agents in the production process, it can
be used in unconventional temperature environment
Product Properties
The composite geomembrane has a certain amount of deformation, and
the stress transfer and dispersion speed of the concave and convex
defects of the base cushion are fast, and the strain capacity is
strong. The pore pressure and buoyancy on the interface between
composite geomembrane and soil are easy to dissipate. It has a
certain heat preservation effect, increased the soil frost heave on
the destruction of geomembrane and HDPE geomembrane, thus
increasing the soil deformation. In addition, the composite
geomembrane has excellent anti-aging function and engineering
maintenance and other advantages
Product Application
Composite geomembrane is widely used in canal anti-seepage
engineering. It has been widely used in anti-seepage works of
irrigation canal. Composite geomembrane is widely used in many
fields such as hydraulic engineering, construction and
transportation because of its excellent impermeability and wide
applicability
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 | |
