Composite HDPE LLDPE Geomembrane EVA PVC sheets

An impermeable material made of geotextile fabric and geomembrane, mainly use for seepage control. With high physical and mechanical properties such as tensile, tear-resistance, and top breakage, can meet the needs of civil engineering such as water conservancy, municipal, construction, transportation, subway, and tunnel, used in unconventional temperature environments.

ATTRIBUTE

Color:Black

Surface:Sand Surface

Raw materials:Rubber and plastic

Usage Environment:Rigid

Applications:Tunnels & Subway

 

Environmental Protection

 

Bridge & Road

PRODUCT DESCRIPTION

Composite Geomembrane HDPE LLDPE EVA PVC sheets

 

Product Description

Composite geomembrane (composite impermeable membrane) divides into one cloth and one membrane and two cloth and one membrane, with a width of 4-6m and a weight of 200-1500g/m2, high physical and mechanical property indexes such as tensile, tear-resistance and top breaking, etc. The products have high strength, better extension performance, large deformation modulus, acid and alkali resistance, corrosion resistance, aging resistance, and good impermeability performance.

It is a geotechnical impermeable material made of plastic film (HDPE film, LLDPE film, EVA film, PVC film, etc.) as an impermeable base material, compounded with non-woven fabric.

 

Product Characteristics

Smaller specific gravity, high strength, corrosion resistance, low temperature resistance, frost crack resistance, good puncture resistance. Large coefficient of friction, good stability with the protective layer.

1. Width of 6 meters, the widest composite membrane in China.
2. High puncture resistance strength and high friction coefficient.
3. Good aging resistance and wide range of adapting to environmental temperature
4. Good anti-drainage performance.

 

LLDPE Geomembrane Specifications

① One cloth one film base fabric: 100~1000g/m2. Film thickness: 0.2~1.5mm

② Two cloths and one membrane base fabric: 80~600g/m2. Film thickness: 0.2~1.5mm

Item		Membrane thickness/mm
		0.2	0.3	0.4	0.5	0.6	0.7	0.8	1.0
Hydrostatic pressure resistance/mPa	One cloth, one membrane	0.4	0.5	0.6	0.8	1.0	1.2	1.4	1.6
	Two cloths, two membranes	0.5	0.6	0.8	1.0	1.2	1.4	1.6	1.8

 

LLDPE Geomembrane Cautions

(1) Use shall be buried: cover thickness should not be less than 30cm.
(2) The refurbishment anti-seepage system should compose of: bedding layers, impermeable layers, transition and protection layers.
(3) The soil should be solid to avoid uneven sinkage and cracks, and the turf and roots within the impermeable range should remove. Laying sand or clay with small particle size as protective layer on the contact surface with membrane.
(4) When laying the geomembrane, do not pull too tightly, both ends buried in the soil part into corrugated better, especially when anchored with rigid materials, should leave a certain amount of expansion.
Composite geomembrane widely use in reservoir seepage control project
Composite geomembrane widely use in reservoir seepage control project
(5) During construction, avoid stones and heavy objects from hitting the geomembrane directly, and it is better to lay the membrane and cover the protective layer when construction.

 

Construction Method

Clean up the grass-roots level (base groove) → composite geomembrane laying → composite geomembrane joint construction, testing → joint anchoring with the surrounding → acceptance → protective layer construction

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Performance Index

Geosynthetic materials plastic geogrid GB/T17689-2008

No.	Item	Indictors
1	Nominal fracture strength/(KN/m)	5	7.5	10	12	14	16	18	20
2	Longitudinal and transverse fracture strength (KN/m) ≥	5	7.5	10	12	14	16	18	20
3	Longitudinal and transverse standard strength corresponding to elongation/%	30-100
4	CBR top breaking strength/KN≥	1.1	1.5	1.9	2.2	2.5	2.8	3.0	3.2
5	Longitudinal and transverse tearing strength/KN≥	0.15	0.25	0.32	0.40	0.48	0.56	0.62	0.70
6	Hydrostatic pressure resistance/mPa	According to the table above
7	Peel strength / (N / cm) ≥	6
8	Vertical permeability index/(cm/s)	As per design or contract requirements
9	According to the design or contract requirements	-1.0

 

LLDPE Geomembrane Application

It widely uses in civil engineering needs such as seepage prevention, isolation, reinforcement and anti-cracking reinforcement in water conservancy, municipal, construction, traffic, subway, tunnel and engineering construction. Using in the anti-seepage treatment of dikes and drains, also the anti-fouling treatment of waste sites.

For more product information please visit the link,

https://www.fytgloble.com/products/sbs-self-adhesive-waterproof-roll.html