What is a composite geotextile？
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Composite geotextile is a general term for a type of composite geosynthetics for many customers. There are many types of composite geotextile.
For example: geotextile composite drainage board:
For example: geogrid composite geotextile：
etc.
This article introduces two geotextile composite products.
PP non-woven geotextile composite PET woven geotextile.
PP non-woven geotextile composite polyester woven geotextile is a new composite geotextile material that combines the advantages of two different types of geotextiles. This is described in detail below.
一. Material properties
1. PP non-woven geotextile: Polypropylene (PP) non-woven geotextile has the characteristics of light weight, high tensile strength, corrosion resistance, good resistance to microbial erosion, and convenient construction.
2. Polyester woven geotextile: Polyester woven geotextile has the advantages of high tensile strength, good elasticity, wear resistance, corrosion resistance, etc., and its strength difference in the warp and weft directions is small.
二. Dimensions and specifications
The size of this composite geotextile can be customized according to specific project needs. Common sizes include 2m×50m, 3m×50m and other specifications. Can meet the requirements of different projects.
三. Advantages
1. High strength and tensile resistance: Combining the advantages of two geotextiles, the composite geotextile has high strength and tensile resistance and can withstand large external forces.
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2. Good stability: The chemical properties of the material are stable, not easily affected by environmental factors, and can maintain good performance under various harsh conditions.
3. Strong corrosion resistance: It has good resistance to chemicals such as acids, alkalis, and salts, and is suitable for projects in a variety of complex environments.
4. Convenient construction: The material is light and easy to lay and construct, which can improve project efficiency.
四. Applicable projects
1. Water conservancy projects: such as anti-seepage reinforcement projects for reservoir dams, channels, embankments, etc.
2. Traffic engineering: In infrastructure construction such as highways, railways, and airports, it is used for soft foundation treatment, roadbed reinforcement, slope protection and other projects.
3. Environmental protection projects: Used for anti-seepage and isolation in environmental protection facilities such as landfills and sewage treatment plants.
4. Mining engineering: used for anti-seepage and slope protection in mine tailings ponds, dumpsites and other projects.
五. Engineering application examples
1. Danger removal and reinforcement project of a large reservoir: This composite geotextile is used for anti-seepage protection treatment, which effectively improves the anti-seepage capability of the reservoir and ensures the safe operation of the reservoir.
2. A highway soft foundation treatment project: The use of composite geotextiles in soft foundation treatment enhances the stability of the foundation and improves the load-bearing capacity of the road.
六. Disadvantages
1. Higher cost: Compared with some traditional geotechnical materials, the cost of this composite geotextile is relatively high, which may increase project investment.
2. High requirements for construction technology: During the construction process, it is necessary to strictly follow the specifications, otherwise the quality of the project may be affected.
3. Vulnerable to mechanical damage: During construction and use, it is susceptible to mechanical scratches and impacts, resulting in local damage.
七. Quality control
In order to ensure the quality of composite geotextiles, strict quality control is required during the production and construction process.
1. Raw material quality testing: Test the raw materials of PP non-woven geotextile and polyester woven geotextile to ensure that their quality meets the requirements.
2. Production process monitoring: During the production process of composite geotextiles, process parameters are monitored to ensure stable product quality.
3. Construction quality inspection: During the construction process, strict quality inspection will be carried out on the laying, welding and other aspects of the composite geotextile to ensure the quality of the project.
In short, PP non-woven geotextile composite polyester woven geotextile is a geosynthetic material with excellent performance and has broad application prospects in water conservancy, transportation, environmental protection and other fields. Although it has some disadvantages, through reasonable design and construction, its advantages can be fully utilized to provide reliable guarantee for project construction.