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About UsZHONGTAI HENGBANG Engineering Technology Co., Ltd. is located in the Academician Entrepreneurship Base of Tai'an National High-Tech Industrial Development Zone, Shandong Province. The company is a comprehensive service provider specializing in engineering consulting and design, materials R&D and manufacturing, as well as operations and maintenance. With strong technical expertise and robust R&D capabilities, its products are primarily applied in critical areas such as water conservancy infrastructure projects, transportation infrastructure initiatives, and environmental protection solutions for isolating and preventing leakage from urban waste and highly hazardous industrial solid waste.
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ProductsZHONGTAI HENGBANG Engineering Technology Co., Ltd. boasts production lines sourced from countries including Germany, Italy, Denmark, Belgium, and Switzerland, adhering to rigorous quality management systems and testing standards. We are equipped with advanced testing equipment capable of evaluating tensile strength, creep resistance, UV protection, water permeability, flame retardancy, antistatic properties, chemical corrosion resistance, and oxidation performance.
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Application CasesThe product is primarily used in hydraulic infrastructure projects, transportation infrastructure projects, and environmental protection applications—including the isolation and impermeability of municipal waste and highly hazardous industrial solid waste.
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BlogPrioritizing technological advancement and innovation, our company is committed to fulfilling user needs to the fullest extent possible.
What are the differences in the uses of geotextile filters and geotextile drainage nets?
Release date:
2023-12-06
Among the geosynthetics used in landfills, one is described in the design as follows: a nonwoven geotextile with a basis weight of 200 grams per square meter, intended for use in the support layer. Many people aren’t sure exactly what this material is, but if the design specifies it further as a black, mesh-like material designed to filter and collect leachate, it immediately becomes clear that this refers to the 200g geotextile filter. The geotextile filter is a water-permeable, mesh-like material woven from polypropylene and polyethylene polymers. It’s primarily used at the bottom layer of landfills to facilitate drainage, and its performance is governed by the CJ/T 437-2013 standard. Typically, these filters come in weights of either 200g or 300g per square meter, with 200g being the most common choice. Geotextile filters serve two main purposes: first, they help collect excess groundwater and surface moisture from the landfill’s top layer; second, they are used at the base of the landfill to efficiently gather leachate. When purchasing these materials, it’s crucial to clearly identify their intended application—whether they’ll be placed at the bottom or top layer. In landfill projects, you may also encounter another related product: the three-dimensional composite drainage geonet, often referred to simply as a "drainage net." While both geotextile filters and drainage nets play vital roles in landfill construction, they are entirely distinct products designed for different functions.
Among the geosynthetics used in landfills, one material is described in the design as follows: a nonwoven geotextile with a basis weight of 200 grams per square meter, intended for use as a support layer. However, many people aren’t sure exactly what this material is. To clarify, if the design specification also includes a mention of a black, mesh-like material used specifically for collecting leachate and functioning as a filtration layer, it would immediately make it clear that this refers to the 200g geotextile filter fabric.
Geotextile filter fabric is a mesh-like, water-permeable material woven from polypropylene and polyethylene polymers, primarily used for drainage at the base of landfill sites. It complies with the standard CJ/T 437-2013, with common weights ranging from 200g to 300g per square meter. For instance, if the design specifications are indicated as GF2-45-10-200, this refers to a geotextile filter fabric designed specifically for collecting leachate. It features a longitudinal tensile strength of 45 kN/m, an opening rate of 10%, and a weight of 200g per square meter.
The geotextile filter is primarily used for two key purposes: first, to collect excess surface water from groundwater and waste landfill sites; and second, to gather leachate at the base of waste landfills. During the procurement process, it’s crucial to clearly identify the specific application area. Additionally, in landfill projects, a geodrainage net—specifically a 3D composite drainage net—is also utilized. While the geotextile filter is typically laid either at the bottom or top layer, the geodrainage net is installed along the slopes of the landfill to manage seepage. These are two entirely distinct products.
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