Application fields of HDPE anti-seepage membrane

1. Environmental protection and sanitation (such as domestic waste landfills, sewage treatment plants, power plant regulating pools, underground foundation waterproofing and anti-seepage, factory roof moisture-proof industries, hospital solid waste, etc.)

2. Water conservancy (such as anti-seepage, plugging and reinforcement of rivers, lakes and reservoirs, anti-seepage of water channels, vertical core walls, slope protection, etc.)

3. Municipal engineering (highways, subways, underground engineering of buildings, planted roofs, anti-seepage of roof gardens, lining of sewage pipes, etc.)

4. Gardens (roof gardens, artificial lakes, rivers, reservoirs, golf course pond linings, slope protection, green lawns waterproof and moisture-proof, etc.)

5. Petrochemical (chemical plants, refineries, gas station oil storage tank anti-seepage, chemical reaction tank, sedimentation tank lining, secondary lining, etc.)

6. Mining (washing tank, heap leach tank, ash dump, dissolution tank, sedimentation tank, stockyard, bottom lining anti-seepage of tailings, etc.)

7. Transportation facilities (basic reinforcement of highways, anti-seepage of culverts)

8. Agriculture (reservoirs, drinking water pools, water storage ponds, anti-seepage of irrigation systems, agricultural breeding such as septic tanks in pig farms)

9. Aquaculture industry (aquaculture ponds, intensive and factory farming ponds, fish ponds, shrimp pond linings, sea cucumber circle slope protection, etc.)

10. Salt industry (salt field crystallization pond, brine pond cover, salt film, salt pond plastic film) Chemical industry (phosphate chemical enterprise waste residue treatment, manganese chemical enterprise tailings dam treatment, etc.) The national standard parameters are as follows: GB/T (17643-1998) )The latest national standard is: GB/T17643-2011.

Serial number item (unit) index

GH-1 GH-2

1 Tensile strength Mpa ≥17 ≥25

2 Elongation at break ≥450 ≥55

3 Right-angle tear strength N/mm ≥80 ≥110

4 Carbon black content ≥2

5 Environmental stress cracking resistance F20h ≥1500

6 Oxidation induction time min at 200℃ ≥20

7 Water vapor permeability coefficient g﹒ cm/(cm﹒s﹒Pa) ≤1.0×10-12 ≤1.0×10—16

8 -70℃ low temperature impact embrittlement property

9 Dimensional stability ±3 Note: Black anti-seepage membrane requirements

HDPE (high-density polyethylene) waterproof and anti-seepage isolation materials

Such as environmental protection nets, waterproof nets, building materials nets, mining equipment (tailings dams ), municipal engineering, water conservancy projects, sewage tanks, chemical wastewater, waste materials, sludge

Agricultural breeding (such as pig farm septic tanks)

Aquaculture tanks

Underground foundations are waterproof and seepage-proof, and factory roofs are moisture-proof

Roof gardens

Artificial lakes, rivers, slope protection

Do not use high-permeability membranes during transportation Drag or pull hard to avoid being stabbed by sharp objects.

1. It should be extended from the bottom to the high position. Do not pull it too tightly. There should be a margin of 1.50 to prepare for local sinking and stretching. Considering the actual situation of this project, the side slopes are laid in order from top to bottom;

2. The longitudinal joints of two adjacent panels should not be on a horizontal line, but should be staggered by more than 1m from each other;

p>

3. The longitudinal joint should be more than 1.50m away from the dam foot and bent foot, and should be located on the plane;

4. First the side slope and then the field bottom;

5. When laying on the slope, the direction of the film expansion should be basically parallel to the maximum slope line.