Glass fiber geogrid is made of glass fiber and made of a certain weaving process. The main components of glass fiber are: silicon oxide, which is an inorganic material. Its physical and chemical properties are extremely stable, and it has high strength, high modulus, high wear resistance and excellent cold resistance, no long-term creep; thermal stability Good performance; the mesh structure makes the aggregate interlock and limit; improve the load-bearing capacity of the asphalt mixture. Because the surface is coated with special modified asphalt, it has dual composite properties, which greatly improves the wear resistance and shearing ability of glass fiber geogrid.

Sometimes with self-adhesive pressure-sensitive adhesive and surface asphalt impregnation treatment, the glass fiber geogrid and asphalt pavement are tightly integrated. As the interlocking force of earth and stone in the glass fiber geogrid grid increases, the friction coefficient between them increases significantly (up to 08-10). The frictional bite force between the geogrid and the soil is strong and significantly increased, so it is a good reinforcement material. At the same time, the fiberglass geogrid is a kind of light-weight, flexible plastic flat mesh, which is easy to cut and connect on site, and can also be overlapped. The construction is simple and does not require special construction machinery and professional technicians.
 
The role of fiberglass geogrid
1. Slow down reflection cracks
Reflective cracks are caused by the stress concentration in the asphalt overlay above the old concrete surface due to the large displacement of the old concrete surface near the joint or crack. It includes horizontal displacement due to changes in temperature and humidity, as well as due to traffic loads. The vertical shear displacement caused by the action. The former results in a relatively concentrated tensile stress in the asphalt overlay above the joint or crack; the latter causes the asphalt overlay above the joint to experience greater flexural tensile stress and shear stress.
2. Anti-fatigue cracking
In the asphalt cover layer, the glass fiber geogrid can disperse the above-mentioned compressive stress and tensile stress, and form a buffer zone between the two stress areas, where the stress changes gradually instead of abruptly, which reduces the impact of sudden stress on the asphalt. Destruction of the overlay. At the same time, the low elongation of the glass fiber geogrid reduces the deflection of the pavement and ensures that the pavement will not undergo transitional deformation.
3. High temperature rutting
Fiberglass geogrids are used in the asphalt overlay, which acts as a skeleton in the asphalt overlay. The aggregate in the asphalt concrete runs through the grids, forming a composite mechanical interlocking system, restricting the movement of the aggregate, and increasing the lateral restraint force in the asphalt surface layer. move, so as to play a role in resisting rutting.