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Geomembrane should have good mechanical properties

The selection of geomembrane should be comprehensively considered in terms of engineering application, economy, construction process characteristics and material properties. The first thing to consider is whether the permeability and quality meet the requirements. Secondly, the high quality HDPE geomembrane should have good mechanical properties, such as penetration resistance, puncture resistance and tensile strength, to resist damage encountered during transportation and construction. Of course, in the construction process, we should also pay attention to protect it from damage. In addition to the above aspects, we should also consider its durability and thickness.

Geomembrane should have good mechanical properties

At present, there are generally three standards for anti-seepage high quality aquaculture geomembrane, namely GB/T 17643-2011 GH-1, GB/T 17643-2011 GH-2 and the urban construction standard CJ/T234-2006 produced by brand new materials. Most geomembrane manufacturers are concerned.

How to choose the thickness of geomembrane in anti-seepage project? There is no doubt that the thicker the geomembrane, the better, but at the same time the cost will increase and become thinner. Although the cost can be reduced, it cannot meet the needs of the project. Therefore, choosing a suitable thickness of geomembrane can not only meet engineering needs, but also achieve the purpose of reducing costs. The choice of thickness should be cautious and tailored according to the engineering requirements of the geomembrane. The thickness of the environmental geomembrane manufacturers is generally not less than 0.5 mm. For some important projects with higher requirements, it should be thickened appropriately. During the actual operation of the project, it is necessary to entrust the relevant testing center to test the materials to prove whether the quality of the geomembrane produced by the manufacturer is reliable, and to provide a basis for selecting safe, reliable and economical materials. The application environment of geomembrane is buried in the ground all year round, so it is required to have good anti-aging and anti-decomposition ability, and can effectively resist the puncture of plant roots. For geomembrane working in complex water environment, it should also have good acid and alkali resistance. Through the above description, you should understand the selection method of geomembrane thickness, and pay attention to avoid uncivilized construction in construction. If used in a complex environment, you can choose a composite geomembrane with geotextiles on both sides to prevent sharp objects from damaging and damaging the membrane material. There are many kinds of geomembranes. Only by choosing a suitable geomembrane can we achieve better anti-seepage effect, increase the service life of the geomembrane, and reduce the construction and maintenance costs of water conservancy projects.

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