Composite geomembrane

Application in dam,rock-fill dam,masonry dam and rolling compacted concrete dam

[Introduction]

Geotec high(middle) density polyethylene geomembrane is made from HDPE resin and additives such as

antioxidant ,light-stabilize and carbon black, etc. It is extensively used for landfills, sewages, mining,

environmental protections and irrigation projects.

 

[Specification]

Thickness:0.5mm-2.5mm width:4-8m

Weave type: Smooth geomembrane, textured geomembrane.

 

[Characteristic]

1.Low Permeability - HDPE lining systems are secure because leachate does not penetrate them;

methane gas will not escape from the HDPE cover system; and rainwater will not infiltrate an HDPE cap.

2.Chemical Resistance - HDPE, resistant to a wide range of chemicals, is not threatened by typical solid

or hazardous waste leachates. It is also suitable for sludge and secondary containment around chemical

storage facilities.

3.Ultraviolet Resistance - HDPE's resistance to UV exposure is further enhanced by the addition of

carbon black. Additionally, with the absence of plasticizers, volatilization is not a problem.

4.Reflective Factor - Geotec offers its HDPE geomembranes in white as well as black. A white surface

helps mitigate liner temperature extremes and aids visual inspection.

 

[Major technical parameter]

Items Technical data	0.50mm	0.75mm	1.0mm	1.5mm	2.0mm	2.5mm
Thickness Deviation %	±6
Material	HDPE
Density	0.94g/m3
Tensile strength Mpa≥	17.5	17.8	18.3	19	21	23
Breaking Elongation ≥	465	472	530	565	582	592
Tear Resistance KN/m ≥	81	83	85	87	89	90
Water Permeability g.cm/(cm2.s.pa)≤	1.0×10-13
-70°C Low Termperature Brittleness	Passed
Size Stability %	±3
Carbon Content %	≥2
WidthxRoll length(m)	7x50m
Loading Quantity per 40HC(m2)	50,000	34,000	26,000	17,000	13,000	10,000

HDPE Geomembrane

 

Composite geomembrane