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What are the types of geosynthetics and how to classify them
2021-08-16
Gester Instruments
292
The raw materials of geotextiles, geomembranes, geocomposites and geotechnical special materials are mainly polyethylene, polypropylene, polyvinyl chloride and other high-molecular polymers. In recent years, geotextiles, geomembranes, and geocomposites have been widely used in water conservancy projects. Geotextiles are divided into two types: woven geotextiles and non-woven geotextiles. Among them, needle-punched non-woven geotextiles have the characteristics of high porosity, high permeability, and good drainage performance. They are often used as drainage reaction in dam projects. Filter facilities are widely used. The geomembrane has good anti-seepage performance, the vertical permeability coefficient is less than 1×10-11cm/s, and the price is cheap, but its CBR bursting strength is low, and it is not suitable for use in engineering parts with high anti-seepage requirements. It is generally used for vertical prevention of dam foundations. Infiltrate. Geocomposite is a product that combines two or more geosynthetics. It has a wide variety and different functions. Among them, composite geomembrane has dual functions of anti-seepage and drainage, and is widely used in dam projects. In recent years, there have been more and more manufacturers of geosynthetics, the scale of production is increasing, the varieties are more and more, and the quality can basically meet the national standards; secondly, the research on geosynthetics has become more and more in-depth, and many countries have formulated Standards or specifications provide a technical basis for the promotion of this material, and the research, production, and design of geosynthetics have gradually matured.
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Hydraulic Method (ISO 13938.1): Fluid pressure on rubber diaphragm for industrial fabrics via GT-C12A.
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Ball Burst Method (ASTM D3787): Steel ball penetration for textiles/films using testers like GT-C02-2.
Hydraulic Method (ISO 13938.1): Fluid pressure on rubber diaphragm for industrial fabrics via GT-C12A.
Pneumatic Method (ISO 13938.2): Compressed air for breathable materials tested with GT-C12B.
Results are influenced by raw materials, yarn properties,
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QUANZHOU GESTER INTERNATIONAL CO.,LTD gains certificates of ISO 9001, 3A and SGS Audited supplier etc. with advanced design concept, excellent manufacturing technology and strict quality control.
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