Glass fiber geogrid (referred to as glass fiber geogrid for short) is a reinforced geosynthetic material widely used in the construction and maintenance of asphalt concrete pavement. It is mainly made of glass fiber alkali-free roving, which is woven into a network structure with high strength and tensile properties and low elongation through a special process.
The following is a detailed popular science on it and its application on asphalt roads:
1.Characteristics of Fiberglass Geogrid:
High tensile strength and low elongation: glass fiber geogrid is made of glass fiber, with elongation at break less than 3% and high deformation resistance.
No long-term creep: Under long-term load, glass fiber will not creep, ensuring long-term stable product performance.
Thermal stability: The melting temperature of glass fibers is 1000 ℃Above, adapt to the high temperature environment in paving operation.
Compatibility with asphalt mixture: The surface is coated with special modified asphalt, which is closely combined with asphalt mixture to improve wear resistance and shear resistance.
Physical and chemical stability: It can resist physical wear, chemical erosion and biological erosion, ensuring that the performance is not affected in various environments.
2.Application on asphalt roads:
Reinforced pavement structure: Laid between the base layer and the asphalt surface layer, as a reinforcement layer, it improves the overall stiffness and bearing capacity of the pavement, and makes the pavement more resistant to heavy load and long-term use.
Prevent reflective cracks: Effectively absorbs and disperses stresses caused by temperature changes or vehicle loads, preventing cracks from reflecting from the underlying layer to the surface layer.
Improve fatigue performance: Limit the lateral displacement of asphalt mixture, improve the ability of pavement to resist repeated loads, and delay fatigue failure.
Inhibit crack propagation: It can restrain the existing fine cracks and prevent the cracks from further propagating.
Improved service life: Prolong the service life of pavement and reduce maintenance and repair costs by enhancing the stability and durability of pavement structure
To sum up, fiberglass geogrid plays an important role in asphalt road construction with its excellent performance, and it is an indispensable reinforcement material in modern road engineering.
Post time: Feb-08-2025
