Laying of HDPE geomembrane

1. Before laying the HDPE geomembrane, the relevant documents of the civil engineering project should be verified.
2. Before the HDPE film is cut, its relevant specifications should be accurately measured, and then cut according to the actual conditions. Generally, it should not be cut according to the specifications.
3. When laying wholesale smooth HDPE geomembrane, the stress should be the least, and the raw materials should be saved as much as possible under the premise of ensuring the quality. Together, we guarantee quality.
4. The lap width of the joint between the smooth HDPE geomembrane and the film is generally not less than 10 cm, and generally, the direction of the weld is placed parallel to the maximum slope, that is, placed in the direction of the slope.
5. Generally, in the corners and deformed sections, the length of the joint should be as short as possible. Unless otherwise specified, welds shall be provided as far as possible within 1.5 m of the slope or stress convergence zone on a slope with a slope greater than 1:6.
6. HDPE geomembrane should avoid the occurrence of artificial folds during laying. When the temperature is low, it should be tightened and leveled as much as possible.
7. After the HDPE geomembrane is laid, the walking and moving things on the film surface should be reduced as much as possible. Any object that can damage the HDPE film should not be placed on the film or carried on the film to avoid
the film. Constitutes accidental damage.

Geomembrane performance characteristics

1. Geomembrane has good chemical stability.
2. The dam liner/fishing farm/shrimp liner Hdpe geomembrane has strong weather resistance and strong anti-aging properties.
3. Geomembrane is a flexible waterproof material with a high anti-seepage coefficient.
4. The overall performance of the geomembrane, dam liner HDPE geomembrane has a strong tensile strength and elongation at break, so that HDPE geomembrane can be used in a variety of different geological and climatic conditions. Adapt to geological uneven settlement and strong strain.
5. Geomembrane has good heat resistance and cold resistance, its use environment temperature is high temperature 110 ° C, low temperature -70 ° C.
6. The geomembrane has high tensile strength, which makes it have high tensile strength to meet the needs of high standard engineering projects.

In the production process of HDPE geomembrane, quality inspection personnel should conduct random inspection of fishing farm HDPE geomembrane in batches. The inspection items include the following three aspects:
1. The appearance and physical properties of polyethylene geomembrane include: mass measurement per unit area, amplitude measurement, thickness measurement.
2. The mechanical properties of shrimp liner polyethylene geomembrane include: wide strip tensile test, trapezoidal tear strength test, CBR burst strength test, drop cone test.
3. The hydraulic performance test of polyethylene geomembrane includes: vertical permeability test, hydrostatic pressure resistance test, etc.

How To Choose The Right Geomembrane

In the process of high quality textured hdpe geomembrane construction, we will face various choices all the time. When you can make the right decision at this time, you will have better protection for the progress and overall quality of the construction of the projectile bentonite waterproof blanket. When the film is in the end, what specific circumstances should be considered? Let us now take a comprehensive look at the specific problems in advance. When you really know that you have to consider the problem, perhaps it is still very simple to choose.

We must consider quality when choosing the geomembrane specifications. When the quality of the products you buy is good, it is a guarantee for the quality of the construction, but if you buy the quality of these raw materials themselves It’s not very good, it will bring all kinds of troubles in the end. This aspect is the most basic for us. If you consider these practical problems in advance, you will buy better products. Silk geotextile.

The choice of high quality textured HDPE geomembrane is crucial for the entire project. Quality is the top priority in the selection process. In addition to quality, it is necessary to take into account the reasonable factors in all aspects. When you can actively participate in the overall The factors have better considerations and determine exactly how you want to do it. The whole choice is the best for you. It is more reasonable to consider the situation in advance. We only do this when we do this. Will buy better.

Geomembrane type and manufacturing principle, high quality textured HDPE geomembrane is a relatively impervious geosynthetic material. According to different raw materials, it can be divided into two categories: polymer and asphalt. In order to meet different strength and deformation needs, there is no reinforcement. Reinforce the distinction, according to birth.

 

Classification Of Geomembranes

Geomembrane type and manufacturing principle, pond liner textured hdpe geomembrane made in china is a relatively impervious geosynthetic material. According to different raw materials, it can be divided into two categories: polymer and asphalt. In order to meet different strength and deformation needs, there is no reinforcement. Reinforcement classification, according to the production process classification of geotextiles, can be divided into blow molding geomembrane, calendering geomembrane, extrusion geomembrane.

A. Blow molding geomembrane.
The blow molding method is also called the tube film method. The blow molding method can be defined as the resin is melted and plasticized by the extruder, and then extruded through the annular die to form a thin-walled tube blank, which is inflated, cooled, and cut open. The geomembrane obtained by flattening is a blown geomembrane.

The principle of blow molding geomembrane manufacturing: the polymer and its auxiliary agent are put into the externally heated extruder through the hopper of the extruder, and then the screw, the compression, the metering action of the screw rotating through the extruder will be The material is melt-plasticized, and the tube blank in a molten state is extruded from an annular die. After the outlet end of the tube, blank is melted, compressed air is blown from a vent hole in the center of the mold, and the tube is produced by a geomembrane manufacturer. Gradually expanding under the action of compressed air, at the same time, the outside of the tube blank is forcedly cooled. At this time, the end of the tube blank is forced to move at a uniform speed. At this time, a continuous cylindrical geomembrane can be obtained. The geomembrane is cut open and flattened to obtain a film (sheet) shape.

B. Calendering geomembrane.
A calendering geomembrane can be defined as a method in which a thermoplastic plasticized plastic is passed through two or more counter-rotating rolls to form a predetermined size and used for a geomembrane (or sheet) of geotechnical materials, calendering geotechnical The high polymer material used in the membrane mainly refers to the classification of polyvinyl chloride and calendered geomembrane: the calendering geomembrane can be divided into a single layer of polyvinyl chloride geomembrane, a double layer of polyvinyl chloride composite geomembrane and a meshed polyvinyl chloride composite geomembrane.

What Is Geomembrane?

What is geomembrane, I believe that as a professional smooth pond liner hdpe geomembrane supplier and manufacturer is qualified to talk about this issue.

The geomembrane is made of high-density polyethylene film, HDPE geomembrane, HDPE anti-seepage film, which is a waterproof barrier material based on high molecular polymer.

HDPE geomembrane has excellent environmental stress crack resistance and excellent chemical corrosion resistance, excellent chemical corrosion resistance, large operating temperature range and long service life. HDPE geomembrane has strong tensile strength. With the elongation at break, HDPE geomembrane can be used in a variety of different geological and climatic conditions, adapting to the geological heterogeneity of the geomembrane to reduce the strain.

The introduction about what is a geomembrane is here. If you have other questions about geomembranes, you can consult a smooth pond liner hdpe geomembrane supplier.