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What‘s Steel Plastic Composite Geogrid ?
Lianyi®Steel Plastic Composite Geogrid is a kind of high-strength geosynthetic material, which is made by combining high-strength Steel wire with polyethylene (PE) or polypropylene (PP), and it combines the mechanical properties of metal with the corrosion resistance of polymer.
Features Of Steel Plastic Composite Geogrid
*High strength: The steel wire core offers extremely high tensile strength (up to over 100kN/m), making it suitable for withstanding heavy loads.
*Mesh size: 50*50mm,60*60mm,75*75mm,100*100mm,120*120mm,150*150mm
*Corrosion resistance: The plastic coating protects the steel wire from the erosion of acids, alkalis, salts and groundwater, thus extending its service life.
*Small deformation: Low elongation (generally ≤3%), which can effectively restrain soil deformation and improve structural stability.
*Good durability: Stable performance in complex environments (such as humidity and ultraviolet rays), with a long service life.
*Lightweight and easy to install: Light in weight, convenient to cut, and highly efficient in laying.
Advantages Of Steel Plastic Composite Geogrid
*The ultra-high tensile strength can reach 30 to 150 kN/m (much higher than that of plastic geogrid), and it is used in heavy-duty engineering.
*The deformation rate of the low creep steel wire core material is less than 3% (almost no deformation under long-term loading).
*The corrosion-resistant plastic layer isolates water/oxygen/chemical media, with a design life of ≥50 years (applicable to saline-alkali land and landfill sites).
*The large interfacial friction coefficient, rough surface structure, enhanced interlocking force with soil (friction Angle > 25°).
*Flexible rolls (1 to 6 meters wide) with convenient construction can be cut on site and have high laying efficiency.
Application Of Steel Plastic Composite Geogrid
*Highway/railway subgrade: Distribute loads, prevent uneven settlement, and reduce cracks.
*Slope protection: Enhance the anti-sliding capacity of soil, such as embankments and mine slopes.
*Soft soil foundation treatment: Form a composite layer with soil to enhance bearing capacity.
*Reinforcement of retaining walls: Reduce lateral pressure and enhance the integrity of the structure.
*Airport and port storage yards: Prevent ground cracking and extend service life.
Frequently Asked Questions
Q: Will steel plastic composite geogrid rust?
The steel wire is completely sealed with plastic and has passed the 4,000-hour salt spray test (ASTM B117). In actual engineering, no corrosion failure has been observed for 50 years.
Q: Can it replace steel mesh?
Sure! In reinforced soil structures, its tensile strength is equivalent to Φ16@100mm steel mesh, but its weight is only 1/10, and the construction speed is increased by 3 times.
Q: Precautions for winter construction?
When the temperature is less than 5℃ :
Disabled! The brittleness of plastic increases, and it is prone to breakage during laying.
When storing, the rolls should be placed vertically to prevent freezing and sticking between layers.
Purchase suggestions
*Verify the test report of GB/T 21825-2008 (national standard) or ASTM D6637 (American standard);
*The key inspection points are the peel strength of the nodes (which should be greater than the tensile strength of the steel strands) and the carbon black content (≥2% UV resistance).
Ultimate advantage: Increase the bearing capacity of the foundation by 300% at a cost of 10%, making it the king of cost performance for soft soil, steep slopes,and heavy-load projects!
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