Steel-plastic composite geogrid is a kind of geosynthetic material that is wrapped into high-strength strips by high-strength steel wire through high-density polyethylene. These strips are formed at right angles to the warp and weft of the plane and are ultrasonically welded. The tensile force of this material can be adjusted by changing the mesh diameter and the number of steel wires to meet the needs of different projects.
Steel-plastic composite geogrid has many advantages in engineering applications:
Strong tensile performance: its tensile force is mainly borne by the high-strength steel wire braided by warp and weft, which can produce extremely high tensile modulus at low strain capacity.
Excellent stability: the steel wire of the longitudinal and transverse ribs is woven into a net, the outer wrapping layer is formed at one time, the steel wire and the outer wrapping layer can be coordinated, and the elongation of failure is very low (not more than 3%).
Efficient reinforcement effect: its width can reach 6m, which realizes efficient and economical reinforcement effect.
Good durability: The high-density polyethylene used can ensure that it will not be attacked by acid, alkali and salt solutions, or oils at room temperatureIt is not subject to water dissolution or microbial damage. At the same time, the polymer properties of polyethylene are sufficient to resist the aging caused by ultraviolet radiation.
High coefficient of friction: through the treatment of the plastic surface in the production process, the rough pattern is pressed to enhance the roughness of the surface of the grid and improve the friction coefficient between the steel-plastic composite geogrid and the soil.
In general, steel-plastic composite geogrid is an excellent geosynthetic material, which is widely used in highway, railway, bridge abutment and other engineering fields.