Two cloths and one film 700g (200 0..)3 200) is an impermeable material, which is mainly used for the needs of anti-seepage, reinforcement, corrosion resistance, and anti-freezing of civil engineering. This material consists of two layers of geotextile in the middle plus a layer of geomembrane, which has an impermeable function.
Below I will give a detailed introduction to the characteristics, uses, and seam methods of two cloths and one film.
Two cloths and one film 700g (200 0..)3 200) is made of non-woven fabric-polyethylene film-non-woven fabric, which has the characteristics of high strength, corrosion resistance, good water permeability, and good anti-microbial properties. It can maintain full strength and elongation in both dry and wet states, and can resist corrosion for a long time in soil and water with different pH levels, has good water permeability, and has good resistance to microorganisms6.
Two cloths and one film 700g (200 0..)3 200) can meet the needs of many projects, such as water conservancy, construction, subway, road, tunnel, engineering construction and other civil engineering needs of seepage, reinforcement, corrosion resistance, anti-freeze and so on. There are two kinds of seam methods of this material: lap and heat welding, the lap width should be greater than 15cm, and the thermal welding should be suitable for slightly thicker geomembrane substrates, and the weld lap width is not less than 5cm1.
There are two types of seam methods for two cloths and one film: lap joint and heat welding. The lap width should be greater than 15cm, and the thermal welding should be suitable for slightly thicker geomembrane substrates, and the weld lap width should not be less than 5cm1. During the construction process, it is necessary to decide the appropriate two cloths and one membrane according to the construction environment of the project and the water depth of the river at ordinary times2.
In total, two cloths and one film 700g (200 0..)3 200) is an impermeable material with excellent performance and a wide range of application prospects. In the construction process, it is necessary to select the appropriate two cloths and one film according to the specific engineering needs and environmental conditions, and adopt the correct joint method to ensure the quality and effect of the project.