Fiberglass geogrid is a high-performance geosynthetic material used in civil engineering and has the following significant advantages:
1. High strength and high modulus
High tensile strength: The tensile strength of glass fiber can reach 50-300kN/m (different specifications vary greatly), which is much higher than that of traditional geotextiles or plastic grilles, and can effectively resist soil deformation and load transfer.
High elastic modulus: The elastic modulus is usually 60-80GPa, and the deformation is small when under stress, which can inhibit cracking and settlement of road surfaces or roadbeds and improve structural stability.
2. High temperature resistance and corrosion resistance
Excellent high temperature resistance: the melting point is up to 1000℃ or above, and will not deform or melt under a high temperature environment (paving temperature is about 160-180℃) for asphalt pavement construction, which is suitable for reinforcement treatment of asphalt pavement.
Chemical corrosion resistance: Glass fibers are chemically stable and resistant to corrosion of acid, alkali, salt and other media. They are suitable for all kinds of harsh geological and climatic conditions, and have a service life of more than 20 years.
3. Excellent stability and fatigue resistance
Strong dimensional stability: It is not easy to creep (slow deformation) at both room temperature and high temperature, and can maintain the reinforcement effect for a long time and avoid structural failure caused by material deformation.
Anti-fatigue cracking: It can effectively disperse the stress generated by loads, reduce fatigue damage on the road surface or roadbed, and extend the service life of the project. For example, using it in a highway can reduce the incidence of reflective cracks by more than 50%.
4. Convenience and economical construction
Light weight and easy to lay: The mass per unit area is usually 80-1200g/m², which is convenient for transportation and construction. It can be directly laid on a flat base layer without special equipment, saving manpower and time costs.
High cost performance: Although the initial cost is slightly higher than that of plastic grilles, the overall cost is lower due to its long life and low maintenance needs. For example, in provincial highway renovation, the use of fiberglass grilles can extend the maintenance cycle by 3-5 years.
5. Good compatibility with asphalt
Surface treatment enhances bonding: Usually treated with special coatings (such as silane coupling agents), the bonding force with the asphalt mixture is strong, which can form an integral composite structure, avoid interface slippage, and enhance reinforcement effect.
Resistant cracks: In the renovation of old roads, laying between the old and new surface layers can effectively block the upward reflection of the cracks in the base layer, which is one of the commonly used materials for treating reflective cracks.
6. Environmental protection and sustainability
Material recyclable: Glass fiber is an inorganic material, and can be recycled and reused after being discarded, reducing environmental pollution and in line with the concept of green building.
Low carbon energy saving: The energy consumption during production is lower than that of metal reinforced materials, and the long-life characteristics reduce the resource consumption caused by repeated construction.
Typical application scenarios
Fiberglass geogrids are widely used in:

Road projects: roadbed reinforcement and road surface crack resistance of expressways, provincial highways, and airport runways.
Railway engineering: Reinforcement of railway beds to reduce roadbed settlement.
Water conservancy projects: The stability of embankments and river bank slope protection is enhanced.
Construction projects: foundation treatment, ground reinforcement in parking lots or squares.
Things to note
When laying, avoid overstretching or folding to ensure that the grille is flat and wrinkle-free.
During construction, asphalt or soil layer should be covered in time to avoid performance degradation due to long-term exposure.