Common Geogrid Classification
Geogrid is a major geosynthetic material. Compared with other geosynthetics, it has unique properties and functions. Geogrids are often used as reinforcements in reinforced earth structures or composite materials. Geogrids are divided into four categories: plastic geogrids, steel-plastic geogrids, glass fiber geogrids, and glass fiber polyester geogrids (warp-knitted polyester geogrids).
1. Plastic geogrid
A plastic geogrid is a square or rectangular polymer mesh formed by stretching wholesale polyester geogrid. Depending on the stretching direction during manufacture, it can be unidirectional or bidirectional. It is punched on a polymer sheet (mostly polypropylene or high-density polyethylene) produced by extrusion, and then subjected to directional stretching under heating conditions. Unidirectionally stretched grids are made by stretching only along the length of the board, while biaxially stretched grids are made by continuing to stretch unidirectionally stretched grids in a direction perpendicular to their length.
Since the polymer of the polymer in the geogrid of plastic is rearranged and aligned with the heating and stretching process, the bonding force between the molecular chains is strengthened, and the purpose of improving its strength is achieved. Its elongation is only 10% to 15% of the original sheet. If anti-aging materials such as carbon black are added to the uniaxial plastic geogrid factory price, it can have better durability such as acid resistance, alkali resistance, corrosion resistance, and aging resistance.
2. Glass fiber geogrid
Glass fiber geogrid is made of glass fiber with a certain weaving process. It is a geo-composite material made of a special coating process to protect glass fiber and improve overall performance. The main components of glass fiber are silicon oxide, which is an inorganic material. Its physical and chemical properties are extremely stable, with high strength, high modulus, high abrasion resistance and excellent cold resistance, no long-term creep; thermal stability Good performance; mesh structure interlocks and restricts the aggregate; improves the bearing capacity of the asphalt mixture. Because the surface is coated with special modified asphalt, it has dual composite properties, which greatly improves the abrasion resistance and shear capacity of the uniaxial plastic geogrid for sale.
3. Steel plastic geogrid
Steel and plastic are made of high-strength steel wire (or other fibers), after special treatment, with polyethylene (PE), and other additives, and extruded into a composite high-strength tensile strip, and the surface has rough embossing, then Reinforced geotechnical belt. Therefore, the single band is formed by a certain distance or sandwich arrangement in the longitudinal and horizontal directions, and the joints are welded by special reinforced fusion welding technology to form a reinforced biaxial geogrid factory price.
4. Polyester fiber geogrid (warp polyester geogrid)
The polyester fiber warp-knitted geogrid (warp-knitted polyester geogrid) uses high-strength polyester fiber as the raw material. The warp-knitted orientation structure is adopted, and the warp and weft yarns in the fabric have no bending state with each other. The cross points are bound and combined with high-strength fiber filaments to form a strong joint point to fully exert its mechanical properties. The high-strength polyester fiber warp-knit geogrid The grid has high tensile strength, small extension force, high tear strength, a small difference in vertical and horizontal strength, ultraviolet aging resistance, wear resistance, corrosion resistance, lightweight, the strong interlocking force with soil or gravel, and enhanced soil Shearing and reinforcement improve the integrity and load capacity of the soil and have significant effects.
Sometimes combined with self-adhesive pressure-sensitive adhesive and surface asphalt dipping treatment, the grid and asphalt pavement are tightly combined into one. Due to the increase of the interlocking force of the earth and stone in the fiberglass geogrid factory price, the friction coefficient between them increases significantly (up to 08-10). The pull-out force of the geogrid in the soil, due to the gap between the grid and the soil. The frictional bite force is stronger and significantly increased, so it is a good stiffening material. At the same time, the geogrid is a light-weight, flexible plastic flat mesh that is easy to cut and connect on-site and can also be overlapped and overlapped. The construction is simple and does not require special construction machinery and professional technicians.