What are the options for geomembranes? Where is the geomembrane good?

Geomembrane is a geomembrane with plastic film as an impermeable substrate and a non-woven fabric composite into a geotechnical impermeable material, and the impermeability of the new material geomembrane mainly depends on the impermeability of the plastic film. At present, the plastic film of anti-seepage application at home and abroad mainly includes polyvinyl chloride (PVC) and polyethylene (PE), EVA (ethylene vinyl acetate copolymer), and there is a design for the use of ECB (ethylene vinyl acetate modified asphalt blend geomembrane) in tunnel applications, which is a kind of polymer chemical flexible material, with small specific gravity, strong extensibility, high adaptability to deformation, corrosion resistance, low temperature resistance, and good frost resistance.

Geomembrane is a kind of waterproof barrier material with polymer as the basic raw material. It is mainly divided into: low-density polyethylene (LDPE) geomembrane, high-density polyethylene (HDPE) geomembrane and EVA geomembrane.

The width and thickness specifications are complete. It has excellent resistance to environmental stress cracking and excellent chemical corrosion resistance. Excellent chemical resistance.

It has a large operating temperature range and a long service life. It is used in landfills, tailings storage sites, channel seepage prevention, dam seepage prevention and subway projects.

The main mechanism is to block the leakage channel of the earth dam with the impermeability of plastic film, and to withstand the water pressure and adapt to the deformation of the dam body with its large tensile strength and elongation. The non-woven fabric is also a kind of polymer staple fiber chemical material, through acupuncture or hot bonding, with high tensile strength and elongation, it is combined with the plastic film, not only increases the tensile strength and puncture resistance of the plastic film, and due to the rough surface of the non-woven fabric, the friction coefficient of the contact surface is increased, which is conducive to the stability of the composite geomembrane and the protective layer. At the same time, they have good resistance to bacteria and chemical reactions, are not afraid of the erosion of acids, alkalis and salts, and have a long service life in the case of dark use.

Distinguish the types of geomembranes from raw materials: such as HDPE geomembrane, LDPE geomembrane, LLDPE geomembrane, EVA geomembrane, PP geomembrane. In terms of processing technology, it is divided into smooth geomembrane, rough geomembrane, composite geomembrane, and in general, the process is divided into two processes: blow molding method and rolling method.

It is from the unit quality, that is, we often say that the square meter gram weight, or thickness to distinguish the geomembrane, such as a project requires the thickness of the black smooth HDPE geomembrane, and then one is the requirement, the composite geomembrane is also divided into a cloth and a film and two cloth and a film, the model has 300g, 400g, 500g, 600g, 700g, 800g, 900g, 1000g ,..Composite geomembrane 1000 grams per square meter. These are all requirements for quality units, which is the most common way to say this when purchasing or consulting.

Process.

The base surface must be cleaned up according to the design requirements, which is the key to ensure the anti-seepage effect, especially for the sharp stones, tree roots and other debris to be completely cleaned, the base surface is not allowed to have local concave and convex phenomena, and the cleaned base surface should be tamped with a tamper or tamping plate to make it dense and flat.

When laying the film, it must be laid from top to bottom. Between the membrane and between the membrane and the substrate should be flattened and tightened, but the membrane should not be stretched too tightly, generally slightly looser, but there should be no bubbles left at the bottom of the membrane. Because the geomembrane is relatively thin and very light, after paving, before the protective layer is paved, it is easy to be blown by the wind, so the area of a film should not be large, and it is best to cover the protective layer soil while laying the film.

According to the information provided by the manufacturer, the width of the composite geomembrane is selected for this project to reduce the joint material. The joint has hot adhesive, gluing, lap and other methods, and the project design adopts adhesive and the seam width is 50mm.

If you find a puncture or tear in the geomembrane, you must use three times the damaged area of the geomembrane adhesive paste to repair it.

The 10cm thick protective layer of the geomembrane must be screened, and the particle size is not allowed to be greater than 6mm, otherwise it is easy to puncture the geomembrane. The protective layer soil must be compacted with tamping to ensure that the dry bulk density is above, and sampling and inspection at any time. When backfilling the protective layer and building the masonry stone protective surface, it must be placed gently to avoid breaking the geomembrane.

Under the stone protection surface, a 100mm thick gravel or gravel cushion should be paved to prevent the soil protection layer from being washed due to the influence of water level changes, wind and waves and other factors. The dry block stone is paved with artificial hanging line, the stone should be tightly embedded, the individual weight of the surface layer stone should be greater than 48kg, and all the voids are filled with small stones.

The requirements of the peripheral junction treatment are to connect the composite geomembrane with the surrounding soil closely, block the seepage inlet, cut off the lateral leakage path, prevent the seepage from entering the bottom surface of the geomembrane, form a blister, and expand the geomembrane when the reservoir water level drops. Therefore, the surrounding junction must be dug to intercept the water tank and bury the geomembrane into the tank. The specific layout is shown in the design drawing.

Tai'an Zhongqi Building Materials has a perfect after-sales team, in strict accordance with ISO9001:2000 from the design, production, transportation, construction and other aspectsiso14000；The 2004 standard regulates management and service. The company has always adhered to the quality first.

First, efficiency.

First, customer first, service first, and constantly meet the user's service tenet, to ensure that partners get exquisite products and satisfactory service.

Among the many geomembrane manufacturers, Shanghai Yingfan Environmental Engineering is recommended, and the following introduces the advantages of Shanghai Yingfan Environmental Engineering in many geomembrane manufacturers, and introduces how to choose geomembrane:

1. Shanghai Yingfan Environmental Engineering Co., Ltd. is a well-known enterprise with large-scale physical production plants and equipment, specializing in the production of impermeable membranes, HDPE geomembranes, bentonite waterproof blankets and geotextiles and other series of environmentally friendly materials; Shanghai Yingfan is a member of China Geosynthetics Engineering Association, a member of Shanghai Chemical Building Materials Industry Association, and a science and technology enterprise in Shanghai.

2. Shanghai Yingfan has passed ISO9001 quality management, ISO14001 environmental management and OHSAS18001 occupational health and safety management system certification, the company has two world-advanced fully automated international standard geomembrane and HDPE impermeable membrane production line, a bentonite waterproof blanket production line, and always implements the overall policy of "integrity, quality, small profits, innovation", a geotextile production line, and a composite geomembrane production line.

3. Produce various specifications and models"Yingfan"Brand impermeable membrane, HDPE geomembrane, geotextile, composite geomembrane, bentonite waterproof blanket and other geosynthetics, with an annual production capacity of up to 12,000 tons, is one of the largest professional manufacturers of geosynthetics in China, and is currently a large-scale geosynthetic material manufacturer in Shanghai. Always implement the overall policy of "integrity, quality, small profits, and innovation", and sincerely welcome friends from all walks of life to visit, inspect and negotiate business!

4. The company is located at No. 189, Kanggong Road, Zhujiajiao Industrial Park, a national historical and cultural town (Qingpu District, Shanghai), with "318" National Highway Huqingping Highway in the east-west direction, Zhufeng Highway in the north-south direction, only kilometers away from the Zhujiajiao exit of G50 Shanghai-Chongqing Expressway, and 35 kilometers away from Shanghai Hongqiao International Airport. Always implement the overall policy of "integrity, quality, small profits, and innovation", and provide roads, water supply and power supply in the industrial park.

5. Shanghai Yingfan Environmental Engineering Co., Ltd. has always implemented the overall policy of "integrity, quality, small profits and innovation" for many years, and our company mainly undertakes solid waste treatment stations, landfills, artificial lakes, reservoir dams, tailings stockpiles, petrochemical oil tanks, subway tunnels, sewage treatment ponds, aquaculture fish and shrimp ponds, biogas slurry ponds, building floors, reservoirs, landscaping and other large-scale anti-seepage projects.

The choice of geomembrane should be decided according to the actual user's engineering project and cost budget, for example, the geomembrane with a thickness of about millimeters can be used for fish ponds, and the geomembrane of urban construction standards for biogas digesters needs millimeters; Landfills require the use of thicker geomembranes. Hope it helps, thanks!

The smoother the surface, the brighter the brightness, the best materials, but also relatively high, Texas is a geotechnical material base, you can send samples for free!

The higher the brightness, the better the quality, and the new material that can be used as a mirror to reflect is the most expensive.

Summary. Kiss! The differences between geomembranes and composite geomembranes are as follows:

Difference 1: Difference in drainage. The geomembrane only plays the role of impermeability, waterproofing and isolation, and has no drainage, while the composite geomembrane has the role of drainage because it contains non-woven geomembrane.

Difference 2: The difference in anti-slip. Due to the addition of non-woven geomembrane as a protective layer, the friction coefficient of the composite geomembrane becomes larger than that of the simple geomembrane, which can reduce the decline of the covering layer.

Difference 3: Due to the increased protection of non-woven fabrics, the puncture ability of composite geomembranes is much stronger than that of HDPE composite geomembranes.

Difference 4: The composite geomembrane has a certain deformation capacity and strong strain capacity.

Geomembranes and composite membranes have very good waterproof and impermeable properties, but the application fields are all different, and then the material resources are different, there is no so-called good and bad, we can do it according to our own needs.

The difference between composite geomembrane and geomembrane.

Kiss! Please wait a while for Little Lemon to inquire for you.

Kiss! The differences between geomembrane and composite geomembrane are as follows: Difference 1:

Differences in drainage. The geomembrane only plays the role of impermeability, waterproofing and isolation, and has no drainage, while the composite geomembrane has the role of drainage because it contains non-woven geomembrane. Difference two:

The difference in terms of slip resistance. Due to the addition of non-woven geomembrane as a protective layer, the friction coefficient of the composite geomembrane has become larger than that of the simple geomembrane, which can reduce the decline of the covering layer Difference three: the composite geomembrane due to the increase in the protection of the non-woven fabric of the chemical tear, the ability to puncture is much stronger than the HDPE composite geomembrane Difference four:

The composite geomembrane has a certain deformation ability, and the strain capacity is relatively strong, and the geomembrane and the composite membrane have very good waterproof and impermeable properties, but the application fields are all different, and then the material resources are different, there is no so-called good and bad, we can do it according to our own needs.

Kiss! Composite geomembranes and geomembranes are contained and contained in a relationship. The composite geomembrane contains a geomembrane, and a layer of non-woven geotextile is added as a protective layer on the basis of the geomembrane.

Due to the addition of non-woven composite geomembrane, in addition to the role of seepage and waterproofing, it also has the role of drainage. In addition, the friction coefficient, anti-slip performance and chemical performance of the composite geomembrane are also much stronger than the geomembrane, and the composite geomembrane has a certain deformation ability.

Geomembrane, also known as "impermeable membrane" and "polyethylene membrane", is currently widely used in landfills, sewage treatment plants, agricultural water storage, petrochemical industry, aquaculture, road engineering and other industries, and mainly plays the role of seepage prevention and isolation in the project.

The main material of geomembrane is polyethylene particles, which is a kind of resin particles extracted from the first grade, which is divided into three types: HDPE high-density polyethylene, LLDPE linear low-density polyethylene and LDPE low-density polyethylene.

Geomembrane has the characteristics of impermeability and isolation, the material of geomembrane is polyethylene plastic, divided into HDPE and LLDPE and LDPE geomembrane, the raw material of geomembrane is the polyethylene resin particles extracted from the first grade by PetroChina Sinopec, processed by casting method and blown film two special processes, geomembrane is a polymer.

Geomembranes are widely used in ash farms, aquaculture, pig farms, daily life landfill seepage, municipal, highway, plant isolation and moisture-proof and other seepage prevention and isolation projects.

The plastic films of anti-seepage applications at home and abroad mainly include polyvinyl chloride (PVC) and polyethylene (PE), EVA (ethylene vinyl acetate copolymer), and the design of ECB (ethylene vinyl acetate modified asphalt blended geomembrane) in tunnel applications, they are a kind of polymer chemical flexible materials, with small specific gravity, strong extensibility, high adaptability to deformation, corrosion resistance, low temperature resistance, and good frost resistance.

Geomembrane is a geotechnical impermeable material composed of plastic film as the impermeable substrate and non-woven fabric, and its impermeability mainly depends on the impermeability of the plastic film.

At present, the plastic film of anti-seepage application at home and abroad mainly includes polyvinyl chloride (PVC) and polyethylene (PE), EVA (ethylene vinyl acetate copolymer), and there is a design for the use of ECB (ethylene vinyl acetate modified asphalt blend geomembrane) in tunnel applications, which is a kind of polymer chemical flexible material, with small specific gravity, strong extensibility, high adaptability to deformation, corrosion resistance, low temperature resistance, and good frost resistance.