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HDPE Geomembrane Specification
| Tested Property | Test Method | Frequency | Minimum Average Value | |||||
| Thickness, (minimum average) mm | ASTM D 5199 | every roll | 0.75 | 1.0 | 1.5 | 2.0 | 2.5 | 3.0 |
| Density, g/cm3 | ASTM D 1505 | every 5th roll | 0.94 | 0.94 | 0.94 | 0.94 | 0.94 | 0.94 |
| Tensile Properties (each direction): | ||||||||
| Strength at Break, N/mm-width | ASTM D 6693, Type IV | every 5th roll | 21 | 28 | 43 | 57 | 71 | 85 |
| Strength at Yield, N/mm-width | 11 | 15 | 23 | 30 | 38 | 45 | ||
| Elongation at Break, % | G.L. 51 mm (2.0 in) | 700 | 700 | 700 | 700 | 700 | 700 | |
| Elongation at Yield, % | G.L. 33 mm (1.3 in) | 13 | 13 | 13 | 13 | 13 | 13 | |
| Tear Resistance, N (lb) | ASTM D 1004 | every 5th roll | 93 (21) | 125 (28) | 187 (42) | 249 (56) | 311 (70) | 373 (84) |
| Puncture Resistance, N (lb) | ASTM D 4833 | every 5th roll | 263(59) | 352(79) | 530(119) | 703(158) | 881(198) | 1,059 (238) |
| Carbon Black Content, % | ASTM D 1603 / D 4218 | every 5th roll | 2.0-3.0 | 2.0-3.0 | 2.0-3.0 | 2.0-3.0 | 2.0-3.0 | 2.0-3.0 |
| Notched Constant Tensile Load, hrs | ASTM D 5397, Appendix |
90,000 kg | 400 | 400 | 400 | 400 | 400 | 400 |
| Oxidative Induction Time, minutes | ASTM D 3895, 200° C; O2, 1 atm |
90,000 kg | >100 | >100 | >100 | >100 | >100 | >100 |
| TYPICAL ROLL DIMENSIONS | ||||||||
| Roll Length, m | 280 | 210 | 140 | 105 | 85 | 70 | ||
| Roll Width, m | 7.0/8.0 | 7.0/8.0 | 7.0/8.0 | 7.0/8.0 | 7.0 | 7.0 | ||
About Geomembrane life timeGeomembrane life time
High-density polyethylene (HDPE) is a thermoplastic polymer with excellent chemical and physical properties. It is the most popular material used in the manufacturing of geomembranes. HDPE geomembranes have a predicted service life span of more than 100 years.
The long life span of HDPE geomembranes is attributed to their ability to resist environmental factors such as chemical degradation, ultraviolet radiation, and stress cracking. Additionally, HDPE geomembranes have a high degree of flexibility, elasticity, and puncture resistance, making them a reliable and durable solution for various applications.
There are many factors that can impact the life span of HDPE geomembranes, such as the quality of installation, soil conditions, and exposure to external factors such as a high concentration of chemicals or extreme weather conditions. However, with proper installation and maintenance, HDPE geomembranes can provide an exceptional performance over a very long period.
Furthermore, the use of HDPE geomembranes presents significant benefits compared to other materials such as concrete or clay. HDPE geomembranes are more economical, lightweight, and easier to handle, transport and install. They also provide a superior level of protection against leakage compared to other materials.
In conclusion, HDPE geomembranes have a long life expectancy due to their resistance and durability, making them a reliable solution for a variety of applications such as waste containment and water conservation. With proper installation and maintenance, HDPE geomembranes can provide a cost-effective and sustainable solution for many years to come.
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.
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