In the "Application of Highway Composite Materials" issued by the Ministry of Transport, it is pointed out that the first use of glass fiber geogrid for road crack prevention can reduce or delay the number of crack reflections, reduce the rutting of asphalt pavements, and improve the fatigue resistance of semi-rigid bases. life.
Main uses of glass fiber grille:
1. The old asphalt concrete pavement is severely cracked. Reinforce the new asphalt surface layer to prevent diseases.
2. The cement concrete pavement is converted to a composite pavement to suppress reflection cracks caused by plate shrinkage.
3. Road extension and renovation project to prevent cracks caused by the new and old joints and uneven settlement.
4. Reinforcement treatment of soft soil foundation is conducive to water seepage and consolidation of soft soil, effectively inhibits settlement, uniform stress distribution, and enhances the overall strength of the roadbed.
5. The semi-rigid base of the newly built road produces shrinkage cracks, and the reinforcement is reinforced to prevent the reflection of the base cracks and cause road cracks.
Engineering function of glass fiber grille:
1. High strength, low creep, adapt to various environmental soils, and can fully meet the use of tall retaining walls in high-grade highways.
2. It can effectively improve the interlocking and occlusion of the reinforced bearing surface, greatly enhance the bearing capacity of the foundation, effectively restrain the lateral displacement of the soil, and enhance the stability of the foundation.
3. Compared with the traditional grid, it has the characteristics of high strength, strong bearing capacity, corrosion resistance, anti-aging, large friction coefficient, uniform holes, convenient construction and long service life.
4. It is more suitable for deep-sea operations and embankment reinforcement, and fundamentally solves the technical problems of low strength, poor corrosion resistance and short service life caused by long-term seawater erosion caused by other materials for stone cages.
5. It can effectively avoid construction damage caused by being crushed and damaged by machinery during the construction process
Application areas of glass fiber grille:
1. Suitable for all kinds of highways, railways and airports to enhance roadbed enhancement.
2. It is suitable for foundation reinforcement of permanent bearing such as large parking lots and terminal freight yards.
3. Suitable for slope protection of railway and highway.
4. Applicable culvert enhancement.
5. It is suitable for the secondary reinforcement of the soil slope reinforced by the unidirectional stretching geogrid to further strengthen the soil slope and prevent soil erosion.
6. Reinforcement of mines and tunnels.