Bangladesh GM13 Standard HDPE Geomembrane

What is  GM13 Standard HDPE  geomembrane?

1. What is GM13

GM13 stands for GRI-GM13, an authoritative global quality standard for HDPE geomembranes issued by the Geosynthetic Research Institute (GRI). It is mandatory for environmental and mining projects across Europe and America.

2. Material of GM13 Standard HDPE Geomembrane

It is manufactured from high-density polyethylene (HDPE) blended with 2%–3% carbon black for UV resistance, available in smooth and textured surfaces. Standard thickness ranges from 0.75 mm to 3.0 mm.

3. Mandatory Core Indicators of GM13 Standard (Distinction from Non-standard Liners)

1. Elongation at break ≥ 700%, with high tensile and puncture resistance;
2. Superior resistance to stress cracking, avoiding breakage during long-term underground service;
3. Qualified oxidation induction time (OIT) for anti-aging and UV resistance, enabling decades of outdoor service life;
4. Strict limits on thickness uniformity and impurity content to prevent uneven thickness and defective products.

4. Core Performance

• Complete impermeability against water and leachate;
• Resistant to acids, alkalis, sewage, mine leachate and chemical waste liquid corrosion;
• Textured type provides high friction, ideal for steep slopes to prevent sliding;
• Good low-temperature toughness, resistant to tearing under foundation settlement.

5. Applicable Projects (GM13 is required for most overseas projects)

Municipal solid waste landfills, tailings ponds, wastewater lagoons, chemical anti-seepage tanks, aquaculture ponds, hydraulic anti-seepage works, oil storage containment and other high-standard anti-leakage projects.

Specification：

Width: 1-8m
Length: 50-150m as customized
Thickness:0.2mm-3.0mm
Color: Black, white,customized products can be supported according to customer needs

Performance:

HDPE geomembrane has good impermeability, high barrier properties, strong puncture resistance, acid, alkali and various chemical erosion resistance, no stains, good adhesion, convenient construction, wide adaptability to environmental temperature range, high puncture resistance, and high friction coefficient. The waterproof and anti-seepage performance formed by combining with geotextile is immeasurable.

What is the Product Specifications of HDPE geomembrane？

The specification of HDPE geomembrane varies depending on the manufacturer and the intended application. However, some general specifications include:

Thickness: HDPE geomembranes are typically available in thicknesses from 0.2mm to 3mm. The thickness of the geomembrane will depend on the specific application and the required level of protection.
Tensile strength: HDPE geomembranes typically have a tensile strength of at least 9 N/mm². This means that the geomembrane can withstand a force of 9 Newtons per square millimeter before it breaks.
Elongation at break: HDPE geomembranes typically have an elongation at break of at least 560%. This means that the geomembrane can stretch by 560% of its original length before it breaks.
Water permeability: HDPE geomembranes are very low-permeable, with a water permeability of less than 10-12 cm/day. This means that water will not easily pass through the geomembrane.
Chemical resistance: HDPE geomembranes are resistant to a wide range of chemicals, including acids, bases, and solvents. However, they are not resistant to all chemicals, so it is important to check the specifications of the specific geomembrane before using it with a particular chemical.
UV resistance: HDPE geomembranes are resistant to UV radiation, but they will eventually degrade if exposed to sunlight for extended periods of time. It is important to choose a geomembrane that has been treated with UV stabilizers to extend its lifespan.
In addition to these general specifications, there may be other specific requirements that must be met for a particular application. For example, a geomembrane for a landfill liner may need to be thicker and more resistant to punctures than a geomembrane for a pond liner. It is important to consult with a qualified geotechnical engineer to determine the specific specifications that are required for your project.

What are the applications of HDPE geomembrane?

HDPE geomembrane is a versatile material that can be used in a variety of applications. Some of the most common applications of LDPE geomembrane include:

Pond liners: HDPE geomembrane is a popular choice for pond liners because it is resistant to water and chemicals. It is also flexible and easy to install, making it a good choice for ponds with irregular shapes.
Landfill liners: HDPE geomembrane is often used as a liner for landfills to prevent the seepage of hazardous materials into the ground. It is also resistant to punctures and tears, making it a good choice for landfills that receive heavy traffic.
Wastewater treatment ponds: HDPE geomembrane can be used to line wastewater treatment ponds to prevent the escape of contaminants into the environment. It is also resistant to the chemicals used in wastewater treatment, making it a good choice for this application.
Reservoir liners: HDPE geomembrane can be used to line reservoirs to prevent the seepage of water. It is also resistant to UV radiation, making it a good choice for reservoirs that are exposed to sunlight.
Dams and levees: HDPE geomembrane can be used to line dams and levees to prevent the seepage of water. It is also resistant to punctures and tears, making it a good choice for dams and levees that are subjected to heavy loads.
Aquatic habitats: HDPE geomembrane can be used to create artificial aquatic habitats, such as fish ponds and wetlands. It is also resistant to the growth of algae and other organisms, making it a good choice for this application.
Soil erosion control: HDPE geomembrane can be used to control soil erosion. It is flexible and can be easily shaped to fit irregular surfaces. It is also resistant to the elements, making it a good choice for long-term soil erosion control projects.
Roofing membranes: HDPE geomembrane can be used as a roofing membrane to prevent leaks. It is also resistant to UV radiation, making it a good choice for roofs that are exposed to sunlight.
Chemical storage tanks: HDPE geomembrane can be used to line chemical storage tanks to prevent the escape of hazardous materials. It is also resistant to punctures and tears, making it a good choice for chemical storage tanks that are subjected to heavy loads.
HDPE geomembrane is a versatile material that can be used in a variety of applications. It is important to consult with a qualified engineer to determine the specific application that is best suited for your needs.

Performance:

• Water and chemical resistance:  HDPE Geomembrane is resistant to water and chemicals, making it a good choice for a variety of applications. It can be used to line ponds, landfills, wastewater treatment ponds, reservoirs, dams and levees, aquatic habitats, and soil erosion control projects.
• Flexibility:  HDPE Geomembrane is flexible and can be easily shaped to fit irregular surfaces. This makes it a good choice for ponds with irregular shapes and for soil erosion control projects.
• Durability:  HDPE Geomembrane is durable and can withstand the elements for many years. It is also resistant to punctures and tears, making it a good choice for applications where it will be subjected to heavy traffic.
• UV resistance:  HDPE Geomembrane is resistant to UV radiation, making it a good choice for applications where it will be exposed to sunlight.
• Cost-effective:  HDPE Geomembrane is a cost-effective solution for a variety of applications. It is a good choice for projects where budget is a concern.

HDPE Geomembrane is a high-quality product that is designed to meet the needs of a variety of applications. It is water and chemical resistant, flexible, durable, UV resistant, and cost-effective. If you are looking for a geomembrane that can meet your needs, HDPE Geomembrane is a good choice.

Here are some additional benefits of using HDPE Geomembrane:

• Environmentally friendly:  HDPE Geomembrane is made from recycled materials, making it a sustainable choice.
• Easy to install:  HDPE Geomembrane is easy to install, even for DIY projects.
• Warranty:  HDPE Geomembrane comes with a 10-year warranty.

If you are looking for a high-quality, cost-effective, and environmentally friendly geomembrane, HDPE Geomembrane is a good choice.