Short fiber geotextile and long fiber geotextile are two types of geotextiles commonly used in civil engineering, and they have some differences in performance and use. This article will introduce the difference between short fiber geotextile and long fiber geotextile in detail.
1. Materials and manufacturing processes
Staple fiber geotextiles are made of staple fiber polymers (such as polyester fibers) with short fiber lengths, usually between a few millimeters. The manufacturing process of staple fiber geotextile is relatively simple and the cost is low, so it is widely used in civil engineering.
Long-fiber geotextile is made of long-fiber polymer (polyester chip), and its fiber length is long, usually between tens of millimeters. The manufacturing process of long fiber geotextiles is relatively complex and costly, but it has higher strength and durability.
2. Performance characteristics
1. Strength vs. Durability
Long fiber geotextiles have higher strength and durability, and can withstand greater pressure and tensile forces, so they are widely used in civil engineering where they need to bear larger loads. However, the strength and durability of staple fiber geotextile are relatively low, and it is suitable for general civil engineering.
2. Water permeability
Staple fiber geotextile has good water permeability, which can quickly discharge water through the fabric surface and keep the soil dry. However, the water permeability of long fiber geotextile is relatively poor, but it can penetrate through the microporous structure on the fabric surface.
3. Chemical resistance
Long fiber geotextile has good chemical corrosion resistance and can resist the erosion of acids, alkalis and other chemicals. However, the chemical corrosion resistance of staple fiber geotextiles is relatively poor, so corresponding protective measures need to be taken.
4. UV resistance
Long fiber geotextile has good ultraviolet resistance, which can resist the erosion of ultraviolet rays and maintain the strength and durability of the fabric. However, the ultraviolet resistance of staple fiber geotextiles is relatively poor, so corresponding protective measures need to be taken.
3. Application fields
1. Hydraulic engineering
In water conservancy projects, short-fiber geotextiles and long-fiber geotextiles have been widely used. Short fiber geotextile can be used for the reinforcement and protection of river banks, dams and other parts, while long fiber geotextile can be used for the construction of large water conservancy projects such as reservoirs and dams.
2. Road engineering
In road engineering, short-fiber geotextile can be used for the reinforcement and protection of subgrade and pavement, while long-fiber geotextile can be used for the construction of highways, railways and other traffic trunk lines.
3. Environmental Protection Engineering
In environmental protection projects, short-fiber geotextiles can be used in the construction of environmental treatment projects such as soil remediation and landfill, while long-fiber geotextiles can be used in the construction of environmental protection projects such as sewage treatment and water treatment.
In short, there are obvious differences between short-fiber geotextiles and long-fiber geotextiles in materials, manufacturing processes, performance characteristics and application fields. In civil engineering, the appropriate geotextile type should be selected according to the specific needs and actual conditions.
Post time: Jan-03-2025
