Composite Geogrid is a high-performance geosynthetics composed of a variety of materials, mainly used for foundation reinforcement, soil stabilization and structural enhancement in civil engineering.
Definition and Types
Material composition
Geogrids are usually made of a polymer matrix (such as polypropylene, polyester) combined with reinforcing materials (glass fiber, steel, etc.). Common types include:
Glass fiber composite grid: With glass fiber as reinforcement, it has the characteristics of high tensile strength and acid and alkali resistance, and is often used in pavement engineering.
Polyester/polypropylene composite grid: A mesh structure is formed by weaving or welding process, which is used for reinforced retaining walls or slope protection.
Structural design
It is divided into two-dimensional plane grid or three-dimensional structure, and the mechanical properties are optimized through the synergy of materials.
| Fiberglass Geogrid | EGA 30-30 | EGA 50-50 | EGA 80-80 | EGA 100-100 | EGA 120-120 | EGA 150-150 | EGA 200-200 | EGA 300-300 | |
| Mesh size (mm) | 25.4x25.4 or 12.5x12.5 or 50.8x50.8 | ||||||||
| Breaking strength ≥(kN/m) | MD | 30 | 50 | 80 | 100 | 120 | 150 | 200 | 300 |
| CMD | 30 | 50 | 80 | 100 | 120 | 150 | 200 | 300 | |
| MD/CMD | 4/4 | ||||||||
| Thernal tolerance(℃) | -100~280 | ||||||||
| Width≤(m) | 6 | ||||||||
| Nonwoven Geotextile |
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| Material | PP or PET |
| Mass per unit area | 20g---100g/㎡ |
| Roll Width | 3.95 /5.95 m |
| Roll Length | 50/100 m |
Manufacturing process and performance characteristics
Production process
Thermoplastic molding: forming a grid structure through high-temperature molding or ultrasonic welding, such as the rib welding process of steel-plastic grid.
Woven composite: weaving fiber materials (such as glass fiber) with polymer substrates and coating them with resin to enhance durability.
Key performance
High strength: tensile strength can reach 30-200 kN/m, which is better than single material grid.
Corrosion resistance: suitable for engineering scenarios in acidic and alkaline environments or long-term exposure.
Water permeability and reinforcement: allowing water to pass through while enhancing soil stability and preventing landslides.
High tensile strength, anti-tearing and high bursting strength.
Function of isolation, drainage, reinforcement, protection, anti-seepage and etc .
