How to prolong the life of geomembrane?

In recent years, the scope of use of geomembrane is still relatively wide, for municipal, environmental protection, water conservancy, roads, railways and landfills, and different use environments play different roles.

The geomembrane used in water conservancy projects is mainly for underground waterproof and anti-seepage construction, and can also improve the anti-seepage effect of irrigation canals. The geomembrane used on bridges can change the performance of the road, improve the bearing capacity of the road surface, and prolong the service life of the road.

However, during the use of the geomembrane, it is necessary to prevent the damage of the geomembrane, but after the geomembrane is installed, its durability is relatively long. It is necessary to know that the durability of the geomembrane includes many aspects, mainly anti-ultraviolet radiation, temperature Changes, chemical and biological erosion, hydrolytic effects, mechanical wear and creep properties, direct ultraviolet radiation are the more important factors for polymer aging, and the combination of moisture, temperature, and ultraviolet light will further promote aging.

Geomembrane synthetic materials refer to rock engineering, civil engineering polymer materials or polymer engineering materials have been widely used in water conservancy, dams, construction and many other fields for a long time. The qualified geomembrane life can reach 50 years, which greatly reduces Construction costs.

In major projects, geomembrane is used as a high-quality geotechnical material, but high-quality geomembrane can not only resist various complex stresses, but also ensure its long-term use under various natural factors. What about membrane life?

The editor will tell my friends, first of all, geomembrane is used in channel anti-seepage engineering. As an inherent characteristic of polymer materials, it cannot be completely eliminated, but effective measures can be taken to prolong its service life.

On the one hand, anti-aging agents are added to the raw materials of the geomembrane, which can inhibit the effects of light, oxygen, heat and other external factors on the material. If anti-aging agents are not added, corresponding measures must be taken during the construction of the geomembrane , Try to shorten the time that the material is exposed to sunlight, and cover it with rock soil or deep water.

In civil engineering and water conservancy projects, areas with complex terrain are often encountered. The harsh construction of geology and environment will have a lot of impact on the life of the project, but geomembrane can not only prolong the life of civil engineering, shorten construction time, save raw materials, but also Construction costs can be reduced.

The anti-seepage film is used for anti-seepage. It is a kind of film. Because it is made of polyethylene plastic particles, it is a plastic waterproof film. It can be processed by calendering, coating, extrusion and cooling.

In addition, there is also a blown film method, which is formed by blowing the geomembrane to a high altitude for cooling and stretching through a three-layer co-extrusion method.

The anti-seepage geomembrane is a kind of polymer copolymer material, which has a very low water vapor permeability coefficient. Because of this, it has a very good anti-seepage ability. It is a product of modern technology. It is used in reservoir dikes, waste residue treatment plants, It has been vigorously used and promoted in waste landfills, transpiration ponds, petrochemical mining, barren mines, artificial lakes, reservoirs, fish ponds, etc. It is a very ideal anti-seepage new geotechnical material.

The service life of the impermeable membrane has always been a concern of the actual construction party and the owner. Because some projects have a minimum service life specified in the design drawings, it is necessary to know in detail the composition of the raw materials of the impermeable membrane and the various additives and auxiliary materials added in the production. The most important thing is to know the environmental stress resistance and anti-aging ability of various geomembranes of different qualities.