Call us today!
Blog
What’s PP Plastic Geogrid?
Lianyi®PP Plastic Geogrid is a kind of mesh or grid-shaped engineering material made from high-molecular polymers (such as polypropylene, polyethylene, etc.) through extrusion, stretching, welding and other processes.PP plastic geogrids are a revolutionary reinforcing material in modern geotechnical engineering. Through its unique mechanical structure and the synergistic effect with soil,pp plastic geogrid has economically and effectively solved traditional problems such as subgrade settlement, slope instability and pavement cracking with its outstanding advantages of lightweight, high strength, corrosion resistance and convenient construction. PP Plaastic Geogrid has become an indispensable basic material in fields such as highways, railways, water conservancy and environmental protection.
Features Of PP Plastic Geogrid
*High strength and low elongation
Through unidirectional or bidirectional stretching processes, the polymer molecules are arranged in a directional manner, endowing them with extremely high tensile strength (typically 10-50 kN/m or higher) and very low elongation (generally less than 13%), which can effectively restrain soil deformation.
*Excellent interlocking effect with soil
The unique grid structure provides an ideal interlocking and interlocking interface for soil and rock materials, effectively diffusing vertical loads horizontally, restricting the lateral displacement of soil, and forming a stable reinforced complex.
*Durability and corrosion resistance
It is fully resistant to chemical substances, microorganisms and electrolytic corrosion in the soil, with a service life far exceeding that of metal materials. The design life is usually 50 to 120 years, and it requires no maintenance.
*Permeability and integrity
The open-cell mesh structure (with pore diameters much larger than those of geotextile) does not impede water flow and ensures smooth drainage. Meanwhile, it has good integrity and uniform force distribution.
Advantages Of PP Plastic Geogrid
*Significantly enhance engineering performance
(1)Enhance bearing capacity: Distribute loads and reduce uneven settlement.
(2)Enhance stability: Prevent slope collapse and retaining wall bulging.
(3)Control cracks: Delay reflective cracks on the road surface.
*Significantly reduce costs and construction time
(1)Material saving: It can reduce the thickness of the filler and make use of local inferior soil.
(2)Simplified construction: Quick laying, no need for large equipment, and less affected by weather.
(3)Reduce long-term maintenance costs: Almost no maintenance required.
*Safety and Environmental Protection
Light in weight and safe for construction. As a reinforcing material, it can be used to build steeper and more ecological slopes, which is conducive to greening.
Applications Of PP Plastic Geogrid
*Subgrade and pavement base: Disperse vehicle loads, prevent base gravel from penetrating soft soil, and reduce reflective cracks.
*Railway ballast cushion: Stabilizes ballast and prevents subgrade heaving.
*Large storage tanks and parking lot foundations: Provide uniform planar constraints.
*Ecological slope protection project: Combined with three-dimensional vegetation nets and plant bags, it realizes the integration of “reinforcement and greening”.
*River regulation and coastal protection: Reinforcing embankments and preventing soil erosion.
*Prevention and control of abutment jumping: Reinforce the roadbed at the bridgehead to alleviate the differential settlement at the connection between the abutment and the roadbed.
Keywords：
1.Geogrid