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Lightweight, High-Strength Composite Geogrid

Four-way plastic geogrids are suitable for subgrade reinforcement in applications such as highways, railways, ports, and airports.

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Lightweight, high-strength composite geogrids are a new type of geogrid manufactured from polypropylene as the core material through a multi-layer melt‑extrusion process. The product features a three‑layer composite structure, with an upper surface layer (white), an intermediate layer (black), and a lower surface layer (white) arranged from top to bottom. Combining the dual advantages of “lightweight” and “high strength,” it represents an upgraded alternative to conventional geogrids.
 
◆ Features
1. Lightweight, high-strength, highly tough, and corrosion-resistant; it exhibits stable mechanical properties and outperforms conventional geogrids in terms of strength, weather resistance, and stress dispersion.
2. Featuring a multi-layered structure, the “micro‑foamed” surface layers on both the top and bottom reduce raw material costs and the geogrid’s weight, while also imparting vertical compressibility to the entire geogrid, thereby significantly enhancing the frictional resistance between the grid and the soil.
 
◆ Purpose
Lightweight, high-strength composite geogrids are suitable for use in highway, railway, airport, port, and municipal road projects.
 
◆ Performance Parameters Table for Lightweight, High-Strength Composite Geogrid
Specification Item TGQG-200 TGQG-280 TGQG-350 TGQG-550 TGQG-700
Radial modulus ≥ (kN/m) 200 280 350 550 700
Secant modulus at 2% elongation ≥ (kN/m) (in the 0° and 90° directions) 235 320 400 630 800
Nominal elongation ≤ (%) (in the 0° and 90° directions) 15
Laminate thickness ≥ (mm) 0.3
UV resistance retention rate ≥ (%) 90

 

The above data are compiled in accordance with relevant national, railway, industry, and enterprise standards.

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