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Lianyi® Geogrid is a new type of geosynthetic specially designed for soil reinforcement,ground stabilization,asphalt reinforcement,retaining wall,slope protection and various civil engineering.They are manufactured by polypropylene (PP), high density polyethylene(HDPE),polyester(PET) yarns,fiberglass yarns and basalt yarns and so on,they are produced by woven or warp knitted from yarns,heat-welded from strips,or using an extrusion and stretching that yields geogrid with highly increased tensile properties in one direction or two directions.
What Are The Types Of Geogrids?
Self-Adhesive Fiberglass Geogrid
High tensile strength and low strain
Improved Load-Bearing Capacity
Increased Strength and Stability
Reduced Erosion and Soil Loss
Easy to install
Cost-Effective
Long-term Stability
Long term design service life
What Are geogrids used for?
Road Construction and Soil Reinforcement
Asphalt layer reinforcement and asphalt road construction
Retaining Wall
Slope protection
Foundation Reinforcement and Ground Improvement
Erosion Control
Landfills
Mining
Landscaping
How Are Geogrids Made?
Geogrids are typically made from polymer materials,including polyester, polypropylene, polyethylene, or polyvinyl alcohol.They can be woven or knitted from yarns,punched into a polymer sheet,extruded through rotating die heads to create a net structure or welded from strips of material.
Punched and drawn geogrids
Molten polymer is extruded into a sheet of defined thickness and a pattern of holes is punched into the sheet.The punched sheet is then stretched in either a single direction to form a uniaxial geogrid or in two directions to form either biaxial or multiaxial geogrids.
Extruded geogrids
Molten polymer is extruded through rotating “die heads” each with a series of “holes” which allow the creation of a “net” type structure.The geometry of the resulting net or geogrid is dependent on the die/extrusion configuration with both uniaxial and biaxial products available.
Welded geogrids
Polymer strips are manufactured and are then bonded together to form a square or rectangular grid shape.The bonding would typically be carried out using heat.
Woven geogrids
Woven geogrids are produced by weaving polymer yarns together, or sometimes knitting polymer yarns together to form a net/grid-like structure.These woven products are often then coated with other polymer materials such as polyvinyl alcohol (PVC) to form the final woven geogrid.
Geogrid/geotextiles composite geogrids
It can be formed by bonding a geotextile separator fabric to the completed geogrid manufactured by the methods above.
Keywords：
PP Geogrid