Steel-plastic geogrid used in highway for subgrade reinforcement, so that the granular filler and grid are locked together with the enterprise to form a stable plane, prevent the filling from sinking, and disperse the vertical load. The multi-layer reinforcement can be used in areas with poor geographical teaching conditions; 2. The stability of the embankment and subgrade filling can be increased and the company's floor area can be reduced; 3 It can be used to improve the Pavement Reinforcement and mix the grid with the pavement structural materials, which can effectively manage the scattered information transmission load and prevent pavement cracks; 4. Be able to bear cultural impact load with certain capacity; 5. Be able to withstand high-risk alternating load; 6. Shorten the economic cycle of construction projects; 7 It can also be constructed under the bad social environment; 8. It can prevent pavement subsidence and crack caused by frost boiling

The polymer mesh with square or rectangular shape formed by steel-plastic geogrid used in highway stretching can be divided into unidirectional tension and biaxial tension according to the different tensile directions when they are manufactured. It is to punch holes on the extruded polymer sheet (the raw materials are mostly polypropylene or high-density polyethylene), and then conduct directional stretching under heating conditions. Glass fiber geogrid is a new type of excellent geotechnical base material for strengthening road surface and subgrade. The product is made of alkali free glass fiber filament as the main raw material, woven by unique warp knitting weaving technology and coated with special rubber. Using polypropylene plastic (PP) and special additives, the flame retardant and antistatic plastic belt for underground coal mine has been successfully developed by using plastic directional drawing, flame retardant and antistatic technology. Through the inspection of national quality inspection department, the mining plastic mesh fully meets the requirements and obtains the production license. We also sell geogrid, one-way and two-way plastic grid, polyester grid, mining grid, three-way grid, geotextile, geomembrane, composite geomembrane, three-dimensional vegetation net and other products.

Unidirectional tensile geogrid polyethylene is high density polyethylene (HDPE) as raw material, plastic sheet extrusion, stamping, heating, stretching. By stretching, the original distribution molecules of the chain are reoriented to the linear state, which can fully improve the tensile strength and mesh stiffness scattering. It is placed in the soil and forms an effective stress transfer mechanism through the interlocking action between the grid grid and the soil, so that the local load can quickly and effectively spread into the soil to a large area, thus helping to reduce the local failure stress and improve the purpose of the project life cycle.

When the steel-plastic geogrid used in highway, it should be determined according to the soil surface, which needs to be fully tested. The polymer mesh with square or rectangular shape formed by biaxial geogrid stretching can be divided into unidirectional tension and biaxial tension according to the different tensile directions when they are manufactured. It is to punch holes on the extruded polymer sheet (the raw materials are mostly polypropylene or high-density polyethylene), and then conduct directional stretching under heating conditions. Using polypropylene plastic (PP) and special additives, the flame retardant and antistatic plastic belt for underground coal mine has been successfully developed by using plastic directional drawing, flame retardant and antistatic technology. Through the inspection of national quality inspection department, the mining plastic mesh fully meets the requirements and obtains the production license. Unidirectional geogrid, a macromolecule polymer as the main raw material, adding a certain anti UV and anti-aging AIDS, through unidirectional stretching, makes the original scattered chain molecules rearrange in a linear state, and then extruded into thin sheets, then punching regular holes, and then longitudinally stretched to form high strength geomembrane. In this process, the polymer is in a linear state, and a long elliptic network structure with uniform distribution and high node strength is formed.

Test contents of steel-plastic geogrid used in highway:

Check the base plane position, size and elevation of the foundation prepared for the construction of geogrid

Check that the geogrid is ready for geological conditions, and the load power of the base is consistent with the design data

Check whether the construction and soil treatment of the foundation meet the requirements of this specification

Check the geogrid construction records and relevant test data, and prepare for construction

Test method of steel-plastic geogrid used in highway:

According to the size of the bridge and culvert, the geological complexity of the foundation (such as karst cave, fault, weak interlayer, easily deep rock, etc.) and whether the structure has special requirements for the foundation, the following detection methods can be adopted:

The touch method can be used directly or, if necessary, used for soil testing.

2. Large and medium-sized bridges and foundation soil conditions are complex, and the structure has special education requirements for the foundation preparation work. The foundation inspection of geogrid can generally adopt touch and drilling depth (drilling depth is at least 4m) sampling geotechnical test, or according to the design and special development requirements, students can analyze the load and pass the test.