Geomembrane is a recombination material that based on the plastic film as the backing material. Composited with non-woven fabrics. its seepage proformance mainly depends on the seepage properties of plastic film.
At present, the main plastic film with the application of seepage proofing, mainly included polyvinyl chloride (PVC) and polyethylene (PE), EVA (ethylene/vinyl acetate copolymer), the ECB (ethylene vinyl acetate modified asphalt blending geomembrane) used in the application of tunnel, is a kind of high polymer chemistry flexible material, small specific gravity, good extensibility, deformation capacity to adapt to, corrosion resistance, low temperature resistant, high corrosion resistance, good low temperature resistance,and good performance of frost resistance.

Physical and mechanical properties of geomembrane

Varieties Index	Low-density polyethylene	high-density polyethylene geomembrane(HDPE)		EVA
Item	Geomembrane (LDPE)	ordinary type	environmental	EVA
Tensile strength (MPa)	≥14	≥17	≥25	≥18
elongation at break (%)	≥400	≥400	≥550	≥600
right-angled tearing strength (N/mm)	≥50	≥80	≥110	≥90
water vapor penetration coefficient (g·cm/cm²·s·pa)	≤1.0×10-16	≤1.0×10-16	≤1.0×10-16	≤1.0×10-16
Operating Temperature Range	+70℃～-70℃	+70℃～-70℃	+70℃～-70℃	+70℃～-70℃
environmental stress cracking resistance (F20-h)	-	-	≥1500	-
oxidative induction time for 200℃(min)	-	-	≥20	-

Mechanism of Action:

The main mechanism is that plastic film obstruct the leakage channels of the earth dam with its impervious, to sustain the pressure and adapt to the deformation of dam body with its larger tensile strength and elongation; The non-woven fabric is a kind of high polymer chemical short fiber material, it formed by needling or hot to sticking, having high tensile strength and extensibility. Through combining with the plastic film, not only increased the tensile strength and puncture resistance of plastic film, but also increased the friction coefficient of the contact surface because of the rough for the non-woven fabric surface, also it is advantageous to stabilization for the composite geomembrane and the protective layer. At the same time, they have a good effect on the erosion resistance for bacteria and chemical, not afraid of acid, alkali, and salt, in the cases of no sunshine, will be a long service life.

Size and package

Width:1---6m
Longth50-100m
Thickness:0.2mm,0.5mm,0.75mm,1.0mm
Color: black, blue,green…

In infrastructure projects, uneven soil settlement, erosion, and water permeation often pose potential threats to structural stability. Our geosynthetic materials provide effective solutions to these challenges.
Geomembranes can effectively block liquid permeation and are widely used in waterproofing applications such as reservoirs, canals, and landfill liners.
Geotextiles, with their filtration and separation functions, protect soil layers and ensure the stability of road bases and foundations.
Geogrids enhance soil load-bearing capacity and provide crucial support for roads, slopes, and bridges. and other structures.
We offer a comprehensive one-stop geotechnical solution, including professional support throughout material selection, design, and construction. This empowers our clients to address complex geotechnical challenges and ensures the long-term stability and efficient operation of their projects.

Keywords

Geomembrane