Geomembrane (EVA)

Category: Polymer waterproofing membrane system

key word: Polymer waterproofing membrane system

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Product Details

★Product introduction:

Geomembrane is a waterproof and impermeable material made of synthetic resin (HDPE, LDPE, EVA, ECB) as the base material, adding antioxidants, ultraviolet absorbers, color masterbatch and other accessories.
HDPE geomembrane has good physical and mechanical properties, high strength, chemical corrosion resistance, environmental stress cracking resistance, root resistance, puncture resistance and other comprehensive characteristics.
LDPE, EVA elongation, low temperature performance, soft and easy construction.
ECB geomembrane is a mixture of ethylene copolymer and petroleum resin, which is a higher grade geomembrane.

★Product specifications:

Product Name	Thickness (mm)	Width (m)
HDPE	0.75-2.5	4-8 m
LDPE	0.2-2.5	4-8 m
EVA	0.2-2.5	2-8 m
ECB	1.0-2.0	2-8 m

★Product Performance

Geomembrane (HDPE, LDPE, EVA) performance index GB/T17643-1998

Serial Number	Project	HDPE-1	HDPE-2	LDPE	EVA
1	Tensile strength (Mpa)	≥17	≥ 25	≥14	≥14
2	Elongation at break (%)	≥ 450	≥ 550	≥400	≥400
3	Tear strength (N/mm)	≥ 80	≥ 110	≥50	≥50
4	Picking resistance (N)	1.5mm thick ≥ 100	1.5mm thick ≥ 130	0.5mm thick> 50	0.5mm thick> 50
5	Dimensional stability (%)	±3.0	±3.0	±3.0	±3.0
6	Water vapor permeability coefficient [g · cm/(cm2 · S · Pa)	≤ 1.0 × 10-16	≤ 1.0 × 10-16	≤ 1.0 × 10-16	≤ 1.0 × 10-16

GB18173.1-2006 on the performance index of geomembrane ECB. and JS3 high-speed rail indicators

Project Name	Detection index	Test Results
Tensile strength (Mpa)	≥14	15
Elongation at break (%)	500	580
Tear strength (KN/m)	60	72
impervious to water	No leakage at 0.3Mpa for 30min	impervious to water
Low temperature bending (℃)	No crack at -35 ℃	Comply with standard requirements

★Product application range

It is suitable for seepage prevention and leakage prevention of geotechnical water conservancy projects such as planted roofs, reservoirs, artificial lakes, landfill plants, tunnels, bridges, etc.

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