Geomembrane (HDPE)

Category: Polymer waterproofing membrane system

key word: Polymer waterproofing membrane system

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Product Details

SoilWorkMembraneWaterproof board（HDPE,LDPE,EVA,ECB）

★ Product introduction:

Geomembrane/waterproof board is made of synthetic resin (HDPE,LDPE,EVA,ECB), etc. as the base material, adding antioxidants, ultraviolet absorbers, color masterbatch and other auxiliary materials made of waterproof impermeable materials.

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、EVALarge elongation, good low temperature performance, soft and easy construction.

ECB geomembrane is a mixture of ethylene copolymer and petroleum resin, which is a higher grade geomembrane.

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 its LDPE its EVA)performance indexGB/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

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 (℃)	－35℃ No crack	Comply with standard requirements

Technical standard for waterproof board for railway tunnel

Serial Number	Project		Indicators
Serial Number	Project		EVA	ECB	PE
1	VA content/% ≥		5	5	—
2	Bitumen soluble matter content% ≥		—	5	—
3	Tensile strength/Mpa ≥		18	17	18
4	Elongation at break/% ≥		650	600	600
5	Tear strength/kN/m ≥		100	95	95
6	impervious to water/0.3Mpa/24h		No leakage	No leakage	No leakage
7	Low temperature bending/℃ ≤		-35	-35	-35
8	Heating expansion and contraction,mm	Extension ≤	2	2	2
8	Heating expansion and contraction,mm	Shrinkage ≤	6	6	6
9	Hot air aging (80℃*168h）	Tensile strength at break/M pa ≤	16	14	15
9	Hot air aging (80℃*168h）	Elongation at break/% ≥	600	550	550
10	Saturated alkali resistanceCa（OH）2Solution	Tensile strength at break/M pa ≥	17	16	16

★ 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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