Geogrid is a major geosynthetic material with unique properties and efficacy compared to other geosynthetics. It is often used as a reinforced material for reinforced earth structures or as a composite material.

Geogrid is divided into four categories: plastic geogrid, steel geogrid, fiberglass geogrid and polyester warp-knitted polyester geogrid. The grid is a two-dimensional grid or a three-dimensional grid screen with a certain height by thermoplastic or molding of a polymer such as polypropylene or polyvinyl chloride. When used as a civil engineering, it is called geotechnical. Grille.

Plastic geogrid

The square or rectangular polymer web formed by stretching may be uniaxially stretched or biaxially stretched depending on the direction of stretching in the manufacture. It is punched on a extruded polymer sheet (mostly polypropylene or high density polyethylene) and then subjected to oriented stretching under heating. The unidirectionally stretched grid is only stretched along the length of the sheet; the biaxially stretched grid is formed by continuing to stretch the unidirectionally stretched grid in a direction perpendicular to its length.

Since the polymer of the geogrid in the manufacturing process is rearranged and oriented with the heating extension process, the bonding force between the molecular chains is strengthened, and the strength is improved. Its elongation is only 10% to 15% of the original board. If an anti-aging material such as carbon black is added to the geogrid, it can have good durability against acid, alkali, corrosion and aging.

Steel plastic geogrid

The steel-plastic geogrid is made of high-strength steel wire (or other fiber), specially treated, with polyethylene (PE), and other additives, and it is extruded into a composite high-strength tensile strip with rough pressure on the surface. The pattern is a high-strength reinforced geotechnical belt. The single belt is formed by longitudinal or transverse arranging or clamping, and is welded by a fusion welding technique with special strengthening bonding to form a reinforced geogrid.

Glass fiber geogrid

The glass fiber geogrid is a geo-composite material made of glass fiber and made of a certain weaving process. It is a geocomposite material which is protected by glass fiber and improves the overall performance. The main component of glass fiber is: silicon oxide, which is an inorganic material. Its physical and chemical properties are extremely stable, and it has high strength, high modulus, high wear resistance and excellent cold resistance, no long-term creep; thermal stability. Good property; the mesh structure makes the aggregate interlock and limit; improve the load-bearing capacity of the asphalt mixture. Because the surface is coated with special modified asphalt, it has two-fold composite performance, which greatly improves the wear resistance and shearing capacity of the geogrid.

Polyester warp knitting

The polyester fiber warp-knitted geogrid is made of high-strength polyester fiber. The warp-knitted oriented structure, the warp and weft yarns in the fabric are not bent with each other, and the intersections are combined with high-strength fiber filaments to form a firm joint point, giving full play to its mechanical properties, high-strength polyester fiber warp-knitted geogrid The grid has high tensile strength, small elongation force, high tear strength, small difference in longitudinal and transverse strength, resistance to ultraviolet aging, abrasion resistance, corrosion resistance, light weight, strong interlocking force with soil or gravel, and reinforcement of soil. Shearing and reinforcing improve the integrity and load of the soil and have a significant effect.