FAQs

Yes, the main function of HDPE geomembrane is waterproofing and anti-penetration, so it has extremely strong waterproofing capabilities.

Geomembranes are mainly made of plastic materials such as high-density polyethylene (HDPE), low-density polyethylene (LDPE), and polypropylene (PP).

LLDPE (Linear Low Density Polyethylene) has better UV resistance than traditional LDPE (Low Density Polyethylene). Therefore, LLDPE generally has a longer service life in outdoor exposure environments.

HDPE geomembrane has high density and hardness, its density is usually above 0.93 g/cm³, and its anti-seepage performance is usually better than LLDPE. HDPE is often used in applications that require higher hardness, chemical corrosion resistance, and anti-seepage requirements, such as pipelines, landfills, etc.

LLDPE geomembrane is linear in shape, has better flexibility, toughness, impact resistance, and can better withstand external impact and stress. Its density is usually around 0.91 g/cm³. LLDPE is often used in applications that require flexibility, impact resistance, and abrasion resistance.

HDPE geomembrane has high tensile strength, tear strength, puncture resistance, etc.

The specific data are as follows:

Yield tensile strength can reach 18MPa
The tensile strength at break can reach 35MPa
Peel strength is 31kN/m
Shear strength is 33kN/m
Yield elongation 13% ~ 16%
Elongation at break 700% ~ 800%
It has good ground adaptability and weather resistance. When it does break down, the strain is about 1000%.
Anti-seepage coefficient is less than 1×10-13 cm/s
The softening point of HDPE geomembrane is about 121℃, and the cold brittle point is about -120℃.

HDPE geomembrane has good UV resistance because it contains carbon black inside, and carbon black can improve UV resistance.

Normally, we do not recommend that you mix LLDPE geomembrane and HDPE geomembrane. But if you have a need for this, we can mix them according to your requirements.

Woven geotextiles are made of polyester, polypropylene, polyethylene and other fibers interwoven through weaving or needle punching processes. Its structure is similar to cloth, with a mesh structure of intertwined fibers. It usually has strong tensile strength and tear resistance, and is often used in civil engineering, roads, dams, ramps and other engineering projects that require strong tensile and tear resistance.

Non-woven geotextiles are formed by spraying, coating, etc. molten synthetic fibers into an amorphous fiber network, and then fixing them together through processes such as thermal bonding or compaction, without any obvious fiber interweaving structure. Nonwoven geotextiles are generally lighter and softer than woven geotextiles. Commonly used in gardening, agriculture, waterproofing, filtration and other fields.

It is usually made of synthetic fibers (such as polyester, polypropylene, polyethylene, etc.) or natural fibers (such as cotton, linen, etc.) through a mechanical weaving process.

Geotextiles prevent weeds from growing. It is commonly used in agriculture, gardening and civil engineering, and one of its main functions is to prevent the growth of weeds.

By covering the soil surface, geotextiles can effectively prevent sunlight from reaching the soil, thereby reducing the conditions for weeds to grow.

In addition, geotextiles can provide a physical barrier that prevents weeds from growing out of the soil. Therefore, the correct use and installation of geotextiles can effectively reduce the growth of weeds.

Geotextiles are permeable, so water can pass through them. The main function of geotextiles is to filter and prevent the loss of soil particles, not to prevent water penetration.

PP geotextile feels rough and has good chemical resistance, UV resistance, acid and alkali resistance and wear resistance. It is suitable for civil engineering projects such as waterproofing, anti-seepage, and filtration, and can also be used in gardening, agriculture and other fields.

PET geotextile feels soft and has high heat resistance, mechanical strength and tensile strength. It is usually used in some special engineering projects, such as engineering in high temperature environments.

In terms of price, PET prices are cheaper than PP prices.

The gram number (mass per unit area, usually calculated in grams/square meter) of the geotextile is not that the heavier the better, but the appropriate gram number should be selected according to the specific engineering needs.

When selecting the weight of geotextiles, factors such as strength, stability, water permeability, filterability, cost, and construction requirements should also be considered.

Geogrid has high tensile strength and tensile modulus, close to the level of mild steel. It can provide the ideal stress and diffusion interlocking system for the soil.

The following are the specific parameters

The tensile strength reaches 100-300KN/m.
The tensile modulus is between 2% and 5%.
Adapt to the environment with temperature -45℃-50℃.
The tensile strength is greater than 150MPa.

100% Virgin Materials HDPE geomembranes are geomembranes made from 100% Virgin Materials HDPE resin pellets, while recycled HDPE geomembranes are geomembranes made from recycled HDPE resin pellets.

The tensile strength, yield strength, puncture strength, right-angle tear strength, etc. of 100% Virgin materials HDPE geomembrane are stronger than those of recycled HDPE geomembrane.

100% Virgin material HDPE geomembrane is better than recycled HDPE geomembrane in terms of crack resistance, aging resistance, sun resistance, oil and salt resistance, acid and alkali resistance, corrosion resistance, high temperature resistance, low temperature resistance, and harmlessness.

100% new material HDPE geomembrane has a smooth, bright and flexible appearance, while recycled HDPE geomembrane has a greasy appearance, rough material spots and poor flexibility.

The service life of 100% Virgin materials HDPE geomembrane underground is 50-100 years, and the service life of recycled HDPE geomembrane underground is no more than 10 years at most.

100% Virgin materials HDPE geomembrane is mainly used for landfill anti-seepage, tailings treatment site anti-seepage, sewage tank anti-seepage, biogas tank anti-seepage, oxidation tank anti-seepage, oil storage tank anti-seepage, chemical reaction tank anti-seepage, etc. . Recycled HDPE geomembrane is mainly used in aquaculture anti-seepage, lotus pond anti-seepage, reservoir anti-seepage and other projects.

Geogrid is mainly used to reinforce soil and improve its integrity, which is equivalent to steel bars in concrete. Mainly used in highways, railways, parking lots, airport runways, embankment and roadbed construction, road reinforcement and other fields.

Geocell is made of reinforced HDPE sheets as raw materials and welded by high-strength electric welding. Geogrids are thermoplastic or molded from polymer materials such as polypropylene and polyethylene.

Geocells are three-dimensional reinforcements, while geogrids are plane reinforcements.

Geocell is a three-dimensional grid structure, and geogrid is a two-dimensional grid or a three-dimensional grid with a certain aspect ratio.

The lateral restraint and bending stiffness of geocells are better, and the bearing capacity and load distribution effect of geocells are better.

Geocells are more expensive than geocells.

Geocells are mainly used to protect road and railway line foundation projects, river embankments and shallow water river management projects.

Geogrids are mainly used for various embankments and roadbed reinforcement, slope protection, and tunnel wall reinforcement. Reinforcement of permanent load-bearing foundations in large airports, parking lots, docks and freight yards.

The application environment of HDPE geomembrane lining is different, and its service life is also different.

It is usually divided into the lifespan buried underground and the lifespan exposed to the air. The lifespan of geomembranes buried underground is about 70 years, and the lifespan of geomembranes exposed to the air is about 40 years.

QIVOC recommends that the optimal thickness of waterproof agricultural geomembrane is: 1.5mm/60mils.

Geomembrane pond liners have a lifespan of over 10 years when exposed to sunlight.

QIVOC recommends using non-woven geotextile as an underlayment to protect the pond liner.

Not poisonous.

HDPE pond liner uses virgin resin without any additives and is suitable for cultivating fish, shrimp and other aquatic products.

QIVOC recommends using 0.75mm/30mil HDPE lining or 1mm/40mil HDPE lining.

It is recommended that you refer to the following parameters for selection:

1. The water depth of the reservoir/pond is about 2m, and an anti-seepage geomembrane lining of more than 0.75mm should be selected.
2. The water depth of the reservoir/pond is about 5m, and the anti-seepage geomembrane lining should be more than 1.0mm.
3. The water depth of the reservoir/pond is about 8m, and the anti-seepage geomembrane lining should be more than 1.5mm.

HDPE geomembrane, geotextile, geonet, GCL, etc.

The service life is over 60 years when exposed to sunlight and up to 100 years without sunlight.

The HDPE lining acts as a low-permeability barrier at the bottom to protect the underground environment.

1. You can send us the scale and area of the project you plan to construct. We will provide you with reasonable specifications and quantity suggestions.
2. You can rely on the specific specifications and quantities of geomembrane liner recommendations provided in the engineering design and specification requirements.
3. You can consult a professional geotechnical engineer or consulting firm during the project planning stage.

Geocells can be filled with concrete.

Geocells are mainly used for road base reinforcement or foundation reinforcement, and can also be used in erosion control projects. When the paving is completed, it needs to be filled with soil, gravel, concrete, etc.

There are many kinds of materials for mining geomembrane, such as HDPE, lldpe, PVC, RPE, XR, EPDM, etc.

QIVOC recommends the use of HDPE geomembrane with a thickness of 1.5mm-2mm. Because of its better tensile strength, elongation, puncture resistance, tear resistance, chemical resistance and UV resistance. And complies with ASTM GM13 standards.

Start by measuring the length, width, and depth of your pond. Normally the width of the joint when welding the pond liners together is 15cm. Then use extra liner for anchoring, we usually recommend adding 0.5m -1m to secure the pond liner.

Finally calculate the liner size needed for your pond

Pad length=length+2*height+2*0.5m
Pad width=width+2*height+2*0.5
Pad size = pad length * pad width

There are many materials for fish pond lining, such as EPDM, PVC, and HDPE.

QIVOC recommends HDPE pond lining. Because of its strong puncture resistance, light weight, thinner and longer life. And easy to install and transport.

Based on QIVOC’s experience. Thicknesses of 0.5mm, 0.75mm and 1mm are suitable for fish ponds. Pads at this thickness have greater tensile strength and puncture resistance, and are more elastic.

QIVOC recommends the use of HDPE mulch geomembrane, which can block tree roots and protect the foundation of pavements and buildings.

The minimum thickness of geomembrane typically used in landfills is 60mil (1.5mm) or 80mil (2.0mm).