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Glass fiber geogrid
Glass fiber geogrid is a kind of geogrid formed by using alkali – free and untwisted glass fiber roving as the main raw material. It is first made into a net – structured material through a special weaving process, and then undergoes surface coating treatment. Glass fiber features high strength, high modulus, and low elongation, providing a good foundation for the mechanical properties of the geogrid.
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Steel-plastic geogrid
The steel – plastic geogrid takes high – strength steel wires (or other fibers) as the core stress – bearing framework. After special treatment, it is combined with plastics such as polyethylene (PE) or polypropylene (PP) and other additives, and a composite high – strength tensile strip is formed through the extrusion process. The surface of the strip usually has rough embossed patterns. Each single strip is then woven or clamped longitudinally and transversely at a certain spacing, and the joints are welded by a special strengthened bonding and fusion welding technology to finally form the steel – plastic geogrid. -
Biaxially – Stretched Plastic Geogrid
It is a new – type geosynthetic material. It uses high – molecular polymers such as polypropylene (PP) or polyethylene (PE) as raw materials. The plates are first formed through plasticizing and extrusion, then punched, and finally stretched longitudinally and transversely. During the manufacturing process, the high – molecular chains of the polymer are re – arranged and oriented as the material is heated and stretched. This strengthens the connection between the molecular chains and thus increases its strength. The elongation rate is only 10% – 15% of that of the original plate.
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Plastic Geogrid
- It is mainly made of high – molecular polymer materials such as polypropylene (PP) or polyethylene (PE). Visually, it has a grid – like structure. This grid structure is formed through specific manufacturing processes. Generally, the polymer raw material is first made into a plate, and then through processes such as punching and stretching, a geogrid with a regular grid is finally formed. The shape of the grid can be square, rectangular, diamond – shaped, etc. The size of the grid and the thickness of the geogrid vary according to specific engineering requirements and manufacturing standards.
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Uniaxially – stretched plastic geogrid
- Uniaxially – stretched plastic geogrid is a kind of geosynthetic material. It uses high – molecular polymers (such as polypropylene or high – density polyethylene) as the main raw materials and also adds anti – ultraviolet, anti – aging and other additives. It is first extruded into a thin plate, then regular hole nets are punched on the thin plate, and finally it is longitudinally stretched. During the stretching process, the molecular chains of the high – molecular polymer are re – oriented from the original relatively disordered state, forming an oval – shaped network – like integral structure with evenly distributed and high – strength nodes.
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