Corrosion Resistant Nonwoven Geotextile For Environmental Engineering project
Product Introduction
Staple fiber geotextile is a kind of geomaterial with good water permeability, which is widely used in civil engineering.
Product Advantages
1. Water permeability: water permeable short fiber geotextile has good permeability and water permeability, can make water flow through, while effectively intercepting soil particles, fine sand, small stone, etc., to maintain the stability of soil and water engineering.
2. Filterability: When water flows from the fine soil layer into the coarse soil layer, the permeable staple fiber geotextile can play a filtering role to prevent soil loss.
3. Durability: It has good tensile strength and deformation resistance, which can enhance the stability of the building structure.
4. Corrosion resistance: can resist the erosion of a variety of chemical substances, suitable for different environmental conditions.
Product Application
1. Water conservancy projects: In reservoirs, DAMS, canals and other projects, permeable staple fiber geotextiles are used for reinforcement and filtration.
2. Road construction: improve the bearing capacity and stability of the roadbed, extend the service life of the road.
3. Environmental engineering: Prevent the spread of pollutants in landfills, sewage treatment plants and other projects.
4. Slope engineering: Used for slope protection to prevent soil erosion and landslides.
Product Specification
* Grams/㎡: 100g~800g/㎡ (100g/120g/150g/200g/250g/300g/350g/400g/500g/600g/700g/800g) Depends on project
* Width:2m~6m
* Roll length:50m~100m
PS: Customized request accept for all above.
Product Specification and Technical Index
(According to the latest released national standard GB/T 17638—2017)
Item | Nominal Breaking Strength(KN/m) | |||||||||
3 | 5 | 8 | 10 | 15 | 20 | 25 | 30 | 40 | ||
1 | Breaking Strength (KN/m,≥,LD/TD) | 3.0 | 5.0 | 8.0 | 10.0 | 15.0 | 20.0 | 25.0 | 30.0 | 40.0 |
2 | Elongation Rate (%,≥,LD/TD) | 20~100 | ||||||||
3 | Bursting Strength(KN)≥ | 0.6 | 1.0 | 1.4 | 1.8 | 2.5 | 3.2 | 4.0 | 5.5 | 7.0 |
4 | Mass Deviation Rate Per Unit Area(%) | ±5 | ||||||||
5 | Width Variation ( %) | -0.5 | ||||||||
6 | Thickness Deviation Rate(%) | ±10 | ||||||||
7 | Sieve Size O90,O95 (mm) | 0.07~0.20 | ||||||||
8 | Vertical Permeability Coefficient (cm/s) | Kx(10ˉ1-10ˉ3) K=1.0-9.9 | ||||||||
9 | Tearing Strength (KN,≥,MD/CD) | 0.10 | 0.15 | 0.20 | 0.25 | 0.40 | 0.50 | 0.65 | 0.80 | 1.00 |
10 | Acid And Alkali Resistance (Strength Retention Rate)/%≥ | 80 | ||||||||
11 | Antioxidant Performance (Strength Retention Rate)/%≥ | 80 | ||||||||
12 | UV Resistance(Strength Retention Rate)/%≥ | 80 |
(GB/T17638-1998)
Specification | F100 | F150 | F200 | F250 | F300 | F350 | F400 | F450 | F500 | F600 | 800 | Remark |
Item | 100 | 150 | 200 | 250 | 300 | 350 | 400 | 450 | 500 | 600 | 800 | |
Weight Variation (%) | -8 | -8 | -8 | -8 | -7 | -7 | -7 | -7 | -6 | -6 | -6 | - |
Thickness (mm≥) | 0.90 | 1.20 | 1.70 | 2.10 | 2.40 | 2.70 | 3.00 | 3.20 | 3.60 | 4.10 | 5.00 | |
Width Variation ( %) | -0.50 | |||||||||||
Breaking Strength (KN/m,≥,LD/TD) | 2.50 | 4.50 | 6.50 | 8.00 | 9.50 | 11.00 | 12.50 | 14.00 | 16.00 | 19.00 | 25.00 | |
Elongation Rate (%,≥,LD/TD) | 25-100 | |||||||||||
CBR Burst Strength ( KN≥) | 0.30 | 0.60 | 0.90 | 1.20 | 1.50 | 1.80 | 2.10 | 2.40 | 2.70 | 3.20 | 4.00 | |
Sieve Size O90,O95 (mm) | 0.07-0.2 | |||||||||||
Vertical Permeability Coefficient (cm/s) | Kx(10ˉ1-10ˉ3) | K=1.0-9.9 | ||||||||||
Tearing Strength (KN,≥,MD/CD) | 0.08 | 0.12 | 0.16 | 0.20 | 0.24 | 0.28 | 0.33 | 0.38 | 0.42 | 0.46 | 0.60 | |
1) Specifications according to the mass per unit area, the actual specification between adjacent specifications in the table, according to the interpolation method to calculate the corresponding assessment index, if beyond the scope in the table, shall be determined between supplier and the demander. 2) Unit Weight standards according to the design or agreement. 3) Width as reference indexes for internal control of production, the appraisal based on the actual design value if user raised requests. |
Production
1.Raw Material Preparation: The process begins with the preparation of raw materials, primarily polypropylene or polyester fibers. These fibers are cleaned and processed to ensure uniformity.
2.Fiber Opening and Blending: The fibers are opened and blended to create a homogeneous mixture. This step ensures consistent quality and performance of the final product.
3.Web Formation: The blended fibers are then fed into a carding machine, which aligns them into a thin web. This web is the foundational layer of the geomembrane.
4.Needle Punching: The fiber web is passed through a needle punching machine, where barbed needles interlock the fibers, creating a strong, non-woven fabric. This step enhances the mechanical strength and durability of the geomembrane.
5.Heat Calendering: The non-woven fabric is then subjected to heat and pressure in a calendering process. This step smooths the surface and improves the fabric's density and impermeability.
6.Coating or Lamination: Depending on the desired properties, the fabric may be coated or laminated with a polymeric material (such as polyethylene or PVC) to enhance its waterproofing capabilities.
7.Cooling and Cutting: After coating or lamination, the geomembrane is cooled and then cut into rolls or sheets of specified dimensions.
8.Quality Control: Each batch undergoes rigorous quality control tests to ensure it meets the required standards for strength, permeability, and durability.
9.Packaging and Shipping: Finally, the finished geomembrane rolls or sheets are packaged and prepared for shipping to various construction or environmental projects.