| Customization: | Available |
|---|---|
| After-sales Service: | 10 Years |
| Warranty: | 10 Years |
|
Still deciding? Get samples of US$ 2/Piece
Order Sample
|
| Shipping Cost: | Contact the supplier about freight and estimated delivery time. |
|---|
| Payment Methods: |
|
|---|---|
| Support payments in USD |
| Secure payments: | Every payment you make on Made-in-China.com is protected by the platform. |
|---|
| Refund policy: | Claim a refund if your order doesn't ship, is missing, or arrives with product issues. |
|---|
Suppliers with verified business licenses
Audited Supplier Audited by an independent third-party inspection agency
HDPE Geomembrane (HDPE) emerged as a response to the growing needs for waterproofing and containment in civil and environmental engineering projects. Its original purpose is to establish an effective barrier against liquid percolation in a variety of applications, from landfill waterproofing to waste containment.
Production Process: Manufactured using advanced extrusion, HDPE Geomembrane (HDPE) go through two main methods: balloon die extrusion and flat die extrusion.
Blow Extrusion:
Phase 1 - Material Preparation: The high-density polyethylene is melted and prepared for the process.
Phase 2 - Initial Extrusion: The molten material is passed through a balloon die, molding a tubular shape.
Phase 3 - Expansion and Cooling: The extruded tube is expanded to the desired thickness and cooled to solidify the geomembrane.
Flat Extrusion:
Phase 1 - Material Feeding: The polyethylene is fed into an extruder, where it is melted.
Phase 2 - Geomembrane Formation: The melted material is extruded through a flat die, shaping the geomembrane into a flat sheet.
Phase 3 - Cooling and Calendering: The geomembrane is quickly cooled and passes through calendering rolls to reach the final thickness.
Both methods guarantee efficient and uniform production, providing specific resistance and durability characteristics to HDPE Geomembranes (HDPE). The choice between methods may vary depending on project specifications and the desired properties of the geomembrane.
HDPE Geomembrane Specification
Item |
Test Value | ||||||
| RH0.30 mm |
RH0.5 mm |
RH0.75 mm |
RH1.0 mm |
RH1.5 mm |
RH2.0 mm |
RH3.0 mm |
|
| Minimum Density(g/cm³) | 0.94 | ||||||
| Strength at yield,N/mm | 5 | 8 | 11 | 15 | 22 | 29 | 44 |
| Strength at break ,N/mm | 8 | 14 | 20 | 28 | 40 | 53 | 80 |
| Elongation at yield,% | 13 | ||||||
| Elongation at break,% | 720min | ||||||
| Tear Resistance N | 40 | 65 | 93 | 125 | 190 | 250 | 375 |
| Puncture Resistance N | 105 | 176 | 240 | 320 | 480 | 640 | 960 |
| Stress Crack Resistance, hrs | 300 | ||||||
| Carbon Black Content, % | 2.0-3.0 | ||||||
| Carbon Black Dispersion | 1 or 2 | ||||||
| Standard OIT Min | 100 | ||||||
| High Pressure OIT Min | 400 | ||||||
| 85ºC Heat aging(OIT Retention rate at Normal pressure after 90d ) % | 85 |
||||||
| UV resistance (OIT retention rate after 1600 hours of UV radiation) | 65 |
||||||
| Impact Cold Crack at -70°C | Pass | ||||||
| Water vapor permeability (g.cm/cm2 .s.Pa) |
≤1.0×10-13 | ||||||
| Dimensional Stability (%) | ±2 | ||||||
Comparison with Traditional Solutions:
The use of HDPE Geomembranes (HDPE) as a waterproofing solution presents several advantages compared to traditional approaches based on reinforced concrete and masonry:
Conclusion: The choice between HDPE Geomembranes (HDPE) and traditional solutions must consider the specific characteristics of the project. In many cases, the versatility, efficiency and lower environmental impact of geomembranes make them the preferred choice for waterproofing applications.
HDPE Geomembrane Packing and Delivery
Tai'an City RuiHeng Building Materials Co., Ltd is specialized in the research, development, production and sales of geosynthetic materials, plastic products and plastic machinery. Our company is devoted to geosynthetic material research and development and application.
1. What is HDPE geomembrane, and what role does it play in geotechnical engineering?
HDPE geomembrane is a type of plastic material used in geotechnical engineering to prevent water or other fluids from penetrating soils or other porous materials. Its primary role is to serve as an impermeable barrier between the underlying foundation material and the surrounding soil or water.
2. What are some of the key benefits of using HDPE geomembrane?
Some of the key benefits of HDPE geomembrane include its high durability, resistance to chemical and environmental damage, flexibility, and ease of installation. It is also relatively light-weight and affordable compared to other materials such as concrete or steel.
3. What are some common applications for HDPE geomembrane?
Some common applications for HDPE geomembrane include lining wastewater treatment ponds, landfill and hazardous waste containment areas, and irrigation and aquaculture systems. It is also used in a variety of mining and construction projects to prevent soil erosion, stabilize slopes, and protect foundations from water damage.
4. What factors should be considered when selecting and designing an HDPE geomembrane system?
Factors that should be considered when selecting and designing an HDPE geomembrane system include the type of soil and water conditions present at the site, the anticipated loads and stresses that the membrane will be subjected to, and the local climate and environmental factors that may impact the membrane's performance over time. It is also important to consider factors such as installation and maintenance costs, as well as the long-term sustainability and environmental impact of the proposed design.
5. How is HDPE geomembrane installed and maintained?
HDPE geomembrane is typically installed using a variety of attachment methods, including welding, adhesive bonding, and mechanical anchoring. Once installed, the membrane should be regularly inspected and repaired as needed to prevent leaks or damage. Regular maintenance may include testing the membrane for permeability, repairing tears or punctures, and ensuring proper drainage and erosion control measures are in place.
6. What are some potential environmental concerns associated with HDPE geomembrane systems?
Some potential environmental concerns associated with HDPE geomembrane systems include the potential for groundwater contamination due to leaks or improper disposal of the membrane material. To mitigate these risks, it is important to follow best practices for installation, maintenance, and disposal of the material, and to carefully consider the potential long-term environmental impacts of the proposed design.
){kind=link}