Construction process of composite geomembrane

Before the laying of the composite film, the earthwork of the channel is filled and the slope surface is finished. The flatness and compaction of the slope surface meet the design requirements and the laying of the composite film can only be carried out after the acceptance of the supervision engineer. 1. Construction preparation 1) Quality inspection of composite membrane materials. The composite high quality fiberglass geogrid used in the project is a two-cloth one-membrane composite geomembrane. Before use, the quality inspection center station is entrusted to inspect various technical indicators of the product. All indicators meet the standards and design requirements. 2) Clearing and leveling the dike slope, removing all sharp-angled debris, backfilling the rammed under-slope, sloping the rich slope and passing the supervision and acceptance, and providing a working surface for the laying of composite geomembrane 3) Splicing in the geomembrane field In order to facilitate the construction and ensure the splicing quality, the composite wholesale fiberglass geogrid should be as wide as possible to reduce the amount of on-site splicing. Before construction, the composite geomembrane width and site length needs to be cut in the unit and spliced. To meet the required size of the block, roll it on the steel pipe, and manually transport it to the working surface to lay it, and it is necessary to avoid damage to the material.

Geosynthetics Comments(0) Tue, 28 Apr 2020 17:07:36 +0800

Reasons for aging of composite geomembrane

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Geosynthetics Comments(0) Mon, 27 Apr 2020 19:31:49 +0800

Geomembrane manufacturers explain the characteristics of rough HDPE geomembrane

1. Reliable anti-seepage effect, its permeability coefficient is less than 10-17cm / s 2. uniaxial plastic geogrid factory price manufacturers explain the construction and laying is easier 3. Its tensile strength, elongation at break, strong resistance to puncture 4. Low price and wide application 5. Stable material and strong resistance to chemical agents 6. wholesale fiberglass geogrid manufacturers explain that the seams are connected by double seams with hot welding machine. The seams have high strength and complete testing equipment, which is not easy to produce.

Geosynthetics Comments(110) Sun, 26 Apr 2020 18:33:41 +0800

Construction method of composite geomembrane

Composite geomembrane is widely used in various anti-seepage projects. The large number of applications of geosynthetics in civil engineering, especially in flood control and emergency rescue projects, and their effectiveness have attracted the great attention of the majority of engineering and technical personnel. The composite geomembrane is widely used in the channel anti-seepage project of irrigation area. Combining the construction practice, let's talk about the construction method of composite HDPE geomembrane factory price. The composite geomembrane is heated by oven far infrared on one or both sides of the film, and the geotextile and geomembrane are pressed together to form a composite geomembrane. Its form has one cloth and one film, two cloths and one film, etc. Geotextile is used as a protective layer of wholesale HDPE geomembrane to protect the impervious layer from damage. In order to reduce ultraviolet radiation and increase anti-aging properties, it is best to use the buy method to lay. In construction, the sand or clay with a smaller material diameter should be used to level the base surface first, and then the geomembrane should be laid. The geomembrane should not be stretched too tightly. The part buried in the soil at both ends is corrugated. Finally, use a layer of fine sand or clay to lay a 10cm filter layer on the geomembrane. Lay a 20-30cm stone as a protective layer against impact. During construction, every effort should be made to prevent stones from directly hitting the HDPE geomembrane for sale, and it is best to carry out the protective layer construction while laying the membrane. The connection between the composite geomembrane and the surrounding structure should be anchored with expansion bolts and steel plate beading, and the connection part should be coated with emulsified asphalt (thickness 2mm) to prevent leakage at this place.

Geosynthetics Comments(0) Fri, 24 Apr 2020 18:34:45 +0800

The solution of HDPE geomembrane thermal expansion and contraction

Geomembrane is widely used, and how to solve problems encountered during construction is also a problem. HDPE impermeable membrane is currently the most widely used HDPE geomembrane for sale for environmental protection engineering and anti-seepage, tailings, and sanitary landfills. It is an impermeable material made of high molecular polyethylene through blow molding or flat extrusion. Durability. HDPE geomembrane heat. The expansion and contraction deformation is large, so the amount of thermal expansion and contraction deformation of the material should be set aside during construction. The HDPE impermeable membrane is laid on the same day as possible, to minimize wrinkles and drag, and should not be pulled too tight, otherwise the stress due to local deformation will be too large and the HDPE membrane will be damaged. How to solve the problems of HDPE geomembrane thermal expansion and contraction and anchoring? You can refer to the data of HDPE geomembrane manufacturers. The seam treatment of geomembrane welding geomembrane is the key procedure of construction, which directly affects the operating life of the project. According to quality inspection, it is ideal to use thermal welding. (It can also be bonded with special glue.) The heat welding method is to heat the surface of the pe geomembrane to melt it, and then fuse it to integrate it. The geomembrane is best laid in a certain direction, and the geomembrane is pre-treated on both sides. Leave a certain non-adhesive layer of pe film and pet. When laying, adjust the geomembrane direction of each unit to facilitate the welding of the high quality aquaculture geomembrane of the two units. After the geomembrane is laid, it should be pressed with sand bags to prevent wind movement. The edge joints must be free of dirt, moisture, dust, etc. Before welding, adjust the two edges of the single film at the seam so that it overlaps a certain broadband, and it is flat and free of wrinkles. When welding, it is best to be welded by a technician with certain experience. Welding is done with a special welding machine. To adjust the temperature and speed, (also can be glued). Protection of HDPE membrane during the construction of leachate crushed stone drainage layer. The leachate drainage layer generally uses materials such as pebbles or gravel, and the thickness should not be less than 30cm. Due to the large landfill area, the amount of gravel paving is very large. How to solve the transportation and paving of gravel on HDPE membrane In the process, it is very important to prevent the problem of damage to the HDPE film. Adopt the operation method of zoning construction, each laying 4 pieces of film as a working unit, laying 5mm thick steel plate on the HDPE film as a material transportation channel, laying a gravel walkway with a thickness of more than 1.5 meters at a certain interval, and then using excavation on the walkway The machine spreads gravel from the inside out. Through the anti-leakage detection, this construction measure has a better protection effect on the HDPE film and rarely damages the HDPE film. How to solve the problems of HDPE aquaculture geomembrane factory price thermal expansion and contraction and anchoring? Geomembrane anchoring After the laying of the geomembrane is completed, anchoring is also the most important part of the project. In fact, there are many methods of anchoring: groove anchoring, nailing anchoring, expansion bolt anchoring, and fixing of embedded parts. Sewage tanks are usually fixed with embedded parts or expansion screw bars. The width of the bead is not less than 2cm, the thickness is not less than 2mm, the distance between the expansion bolts should not be greater than 600mm, and anti-corrosion measures should be taken in the exposed area of ​​the bead. The bolt diameter is not less than 4mm, and the spacing is not more than 0.5mm. During construction, first use the prepared sandbag to temporarily fix the film in place to prevent the strong wind from blowing and shifting the HDPE film, and then anchor the expansion bolt. If the embedded parts have been buried, you only need to use an extrusion welding machine to weld the film to the HDPE embedded parts.

Geosynthetics Comments(0) Thu, 23 Apr 2020 18:46:46 +0800

Geotextiles can be customized in different specifications

When it comes to geotextiles, everyone is not unfamiliar. Of course, wholesale filament nonwoven geotextile are very widely used. When they are commonly used for greening, they will be covered with a layer of geotextile before covering the soil. , So many landscape projects will use geotextile, which is a typical application. Of course, geotextile can also be used for road construction, laying on the road to protect the roadbed, and can be recycled after use. Geotextile has a simple structure, and compared with other engineering materials, the price of geotextile is also very economical. Geotextile can be customized according to different specifications to meet different engineering requirements and is very flexible. In landscaping, geotextiles are also used to protect large trees, especially when the weather is very cold in winter. wholesale polyester nonwoven geotextile are wrapped around the roots to protect the trees and make garden maintenance easier. The three colors commonly used for geotextile, white, black, geotextile, design and color, are indistinguishable from function, only the quality of raw materials and the length of service life. Generally speaking, white wholesale polypropylene nonwoven geotextile is widely used, whether it is a real estate project The Botanical Garden Project, the recent environmental audits, and the environmental requirements of raw materials are also getting higher and higher, so a good raw material brings good products. We always insist on serving customers with good materials, good products, and good services. To be precise, the plastic film is a kind of plastic film. Geotextile is a synthetic material, it has woven geotextile, needle-punched geotextile, impervious geotextile and so on. Geomembrane is a commonly used anti-seepage polypropylene nonwoven geotextile for sale. Geomembrane is a geomembrane material composed of plastic film and non-woven fabric. Geomembrane has better water barrier and impermeability than ordinary geomembrane. It can also be distinguished literally. One is the film, and the other is the cloth. Of course, the roughness of the cloth and the micro gaps in the weave are not low in water permeability. Of course, this has not been fully understood. Geomembrane consists of plastic film and non-woven fabric. It not only contains the excellent characteristics of the two materials, but also forms new advantages due to the complementarity of the two materials.

Geosynthetics Comments(0) Wed, 22 Apr 2020 18:20:59 +0800

The role of waterproof geotextile in engineering

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Geosynthetics Comments(0) Tue, 21 Apr 2020 16:54:11 +0800

Geotextile has good elasticity and plasticity

Geotextile has the effect of making the project more firm. In a sense, polypropylene nonwoven geotextile manufacturers applied to water conservancy projects can reduce the impact of natural disasters on the project. Now let's take a closer look at this knowledge introduction? Geotextile is a water-impermeable film made of polymer and asphalt. Traditional impermeable geotextiles include polyethylene PE, polyvinyl chloride PVC, asphalt glass cloth linoleum and so on. Practice has shown that as long as the geotextile joints are handled well, the construction quality is guaranteed, and the membrane material anti-seepage channel can generally reduce the leakage loss by 90% to 95%. This means that the water conservancy project using geomembrane will not cause excessive erosion of the project foundation. . polypropylene nonwoven geotextile factory price has a strong ability to adapt to deformation. It has good elasticity and plasticity. Since the anti-seepage geotextile has strong ability to resist strain, it has strong adaptability to deformation caused by temperature change, frost heave, and uneven foundation settlement. This is a major guarantee for the stability of the project at home. Especially in areas with large frost heave deformation in the north, the effect is ideal. Strong corrosion resistance. Geotextiles have good resistance to bacterial invasion and chemical action, and are generally not eroded by acids, alkalis and microorganisms, and are particularly suitable for areas with aggressive hydrogeological conditions and salinization.

Geosynthetics Comments(0) Mon, 20 Apr 2020 17:58:06 +0800

What are the application characteristics of geotextile

Geotextiles are usable in many industries. In order to ensure the quality of products, some matters need attention. Now let's take a closer look at this knowledge introduction? Waterproof soil wave densely uses plastic resin to act as an impermeable base material, and a geotechnical impervious material compounded with non-woven fabric. Its impermeability is important to measure the plastic's reliability. Because the mixed fibers used for wholesale polypropylene nonwoven geotextile manufacturing are mainly nylon, polyester, polypropylene, and ethylene, they are completely strong in embedding resistance, and the resistant cloth is permeable material, so it has a very good anti-filtering and cutting fundamental performance; non-woven The geotextile has a soft layout and is fully irrigated. It has good anti-wear geomembrane stab campaign strength, so it fully guarantees the reliability. The high quality filament nonwoven geotextile has a good friction coefficient and high tensile strength and completeness.

Geosynthetics Comments(1) Fri, 17 Apr 2020 17:51:16 +0800

The relationship between the advantages of using waterproof geotextile and the production materials

As a new type of waterproof, soil-proof and sand-proof material, waterproof high quality polyester nonwoven geotextile has many advantages in use. The reason why it has so many advantages is mainly inseparable from the selection of his excellent materials. During the production of waterproof geotextiles, polymer materials are mainly used as raw materials, and anti-aging agents are added during the production process, so it performs well in unconventional temperature environments, especially dams, drainage ditches, and waste yards. Waiting is a good place to show their skills. Moreover, from its name, we can also see that it is waterproof and has a good drainage effect. When used, it can effectively intercept the loss of sand and soil and remove excess liquid and Exhaust gas and enhance the stability of the building structure to improve the quality of the soil. At the same time waterproof polyester nonwoven geotextile manufacturers can play a role of isolation.

Geosynthetics Comments(0) Thu, 16 Apr 2020 18:47:12 +0800