What are the characteristics of geotextile?

DWQA QuestionsCategory: geotextileWhat are the characteristics of geotextile?
Gtmgeotextile Staff asked 2 years ago
3 Answers
Gtmgeotextile Staff answered 2 years ago

Characteristics of Geotextile
1. High strength. Due to the use of plastic fiber, it can maintain full strength and elongation under dry and wet conditions.
2. Corrosion resistance, in different pH of soil and water can be long-term corrosion resistance.
3. The water permeability is good because there is a gap between the fibers, so it has good water permeability.
4. Good anti microbial property will not damage microorganism and moth.
5. The construction is convenient. Because the material is light and soft, it is convenient to transport, lay and construct.

Gtmgeotextile Staff answered 2 years ago

1. Good physical and mechanical properties
The working environment of geotextile is very bad. In many cases, it is soaked in water or spread in soil with high humidity, so it must have good hydrolysis resistance and wet mechanical properties.
2. UV radiation resistance, hydrolysis resistance, high and low temperature resistance
Geotextile should be exposed to sunlight, so it should have the corresponding UV resistance performance; geotextile should adapt to the temperature when contacting with asphalt and other materials, requiring a high melting point.
3. Chemical resistance, corrosion resistance and mildew resistance
Water and soil are very different, some are alkaline, some are acidic, some contain more salt, some contain various elements, so they must have chemical stability.
4. Good water permeability
Geotextile filtration and drainage need to be permeable, so it must have good permeability.
At present, the raw materials of geotextile are mostly high polymer, among which polypropylene (including fiber) is the most widely used, accounting for more than 50% of the total amount of geotextile, and the United States has accounted for more than 80%. Polyester raw materials (including polyester) account for 15% – 30%, ranking the second place, and are widely used in Japan. Polyethylene and polyamide fiber are less used, and vinylon is also used in China.
The physical properties of geotextile include mass per unit area, thickness, specific gravity, flexibility, etc. Mass per unit area is a basic performance of geotextile, which affects many other indexes; thickness is tested under a certain pressure (2 × 104pa), and thickness affects the performance of water flow along the plane; the size of specific gravity determines the size of volume under unit weight of geotextile and the situation of sinking and floating in the water; most geotextiles are easy to flex and roll into a roll for convenient transportation..

Gtmgeotextile Staff answered 2 years ago

① High strength. Due to the use of plastic fiber, it can maintain full strength and elongation under dry and wet conditions.
② Corrosion resistance, in different pH of soil and water can be long-term corrosion resistance.
③ The water permeability is good because there is a gap between the fibers, so it has good water permeability.
④ Good anti microbial property will not damage microorganism and moth.
⑤ The construction is convenient. Because the material is light and soft, it is convenient to transport, lay and construct.
⑥ Complete specifications: width up to 9 meters. It is the widest product in China, unit area quality: 100-1000g / m2.