Biaxially stretched plastic geogrid is suitable for foundation reinforcement with large area bearing capacity

1. Definition and production of biaxially extended plastic geogrid

Biaxially drawn plastic geogrid (referred to as double drawn plastic grid for short) is a geomaterial made of high molecular polymer through extrusion, plate forming and punching processes, and then longitudinally and transversely stretched. In the production process, polypropylene is used as the main raw material (a small amount of polyethylene materials are also used), and anti-aging and anti-ultraviolet components are added. After the raw materials are heated and extruded, the raw materials are then evenly stretched with the same strength in the longitudinal and transverse directions. This material has great tensile strength in both longitudinal and transverse directions, and this structure can provide an ideal interlocking system for more effective force bearing and diffusion in the soil, which is suitable for foundation reinforcement with large-area load bearing.

2. Characteristics of biaxially extended plastic geogrid

• Mechanical properties
  • High strength ：Made of high-strength polyester or poly and other materials, it has high tensile strength and cracking resistance, and can withstand heavy loads. It has great tensile strength in both longitudinal and transverse directions, which can meet the needs of construction and engineering load-bearing requirements. For example TGSG30KN The national standard geogrid is made of polymer synthetic materials, which has good tensile strength and compressive strength, and can bear large loads
  • Better creep resistance ：Under the action of stress (load), it can better cope with the phenomenon that the material strain (deformation) changes with time, and ensure the stability during long-term use .
• Durability aspect
  • Good aging resistance ：After special treatment, it has good aging resistance, and can withstand the influence of external environment for a long time without being easily damaged. For example, the biaxially stretched geogrid can be used outdoors for a long time without obvious aging phenomenon after special treatment, TGSG30KN The national standard geogrid has a special treatment process and has aging resistance. It can be used outdoors for a long time without obvious aging phenomenon .
  • Good weather resistance ：Made of high molecular polymer material, it can be used indoors for a long time without being affected by the environment, and can maintain stable performance under different climatic conditions .
  • Strong corrosion resistance ：It can resist the erosion of corrosive substances such as chemicals, acids and alkalis, so it can be used in humid and corrosive environments for a long time. For example, biaxially stretched plastic grille can resist the erosion of harsh environments such as acids and alkalis and humidity.
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