What is the reaction of composite geomembrane affected by temperature
When the composite geomembrane is used, what are the effects of temperature and how the temperature reacts to the composite geomembrane? As a composite geomembrane manufacturer in Shandong, let the editor and everyone have a detailed understanding! The creep of composite geomembrane is greatly affected by temperature changes, according to the creep law under low-temperature creep and freeze-thaw cycles. The creep value decreases with the decrease of ambient temperature, and tends to a stable law. When the creep at room temperature has stabilized, the concept of the influence factor DR of the freeze-thaw cycle is proposed. During the freeze-thaw cycle, the creep value increases during the heating stage. And get the calculation method of creep influence coefficient FcR at low temperature. In terms of engineering cost, the use of composite geomembrane as an impermeable base material is more than one-half lower than the base-level gravel filter. Preventing river pollution and soil erosion can play a role in protecting the environment. The temperature should generally be above 5 degrees Celsius. When the temperature is too low, the construction should not be carried out in strong winds above grade 4, rain or snow. The composite geomembrane will be tense at low temperatures, and the geomembrane should be relaxed at high temperatures.
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How to determine if the composite geomembrane meets the standards
Looking at the solidity of the additional layer of the complex part of the composite geomembrane, during the construction of the protective layer, it is necessary to ensure the adhesion area and adhesion strength of the waterproof membrane to ensure the quality of the project. The surface needs to be coated with oily adhesive to ensure the adhesion area. During construction, fabrics and other building materials have a great influence on the hydraulic conductivity of the composite geomembrane. No heavy objects should be placed on the composite geomembrane to avoid damage to the material, but the pressure it can withstand determines its hydraulic conductivity. An important indicator of Before welding, adjust the two sides of the PE single membrane at the joint. When welding, the welded composite geomembrane should be welded by a special welding machine. To adjust the temperature and speed, it can also be glued.
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