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What are the two levels of widening of the geogrid in the asphalt concrete road?
- If it is not clear, you can ask mes
What are the criteria for Geogrid?
- Geogrid is a kind of polymer material with square or rectangular shape which is formed by stretching. It can be used as two kinds of uniaxial tension and biaxial tensions
What is the meaning of 400g geotextiles /100g woven fabric
- Main production, geotextile, geogrid, geomembranes
What criteria should be used in the construction of Geogrid
- 1, the construction site: requirements compaction flat, horizontal, removal of the protrusion. 2, in the formation of compaction: Geogrid laying site, installation of the grid the main stress direction (longitudinal) should be perpendicular to the axis of the embankment, laying should be smooth, no wrinkles, as far as possible tension. With the plug pin and the earth pressure is fixed, the laying of the grille main stress direction is best long without joint connection between the amplitude and the amplitude of the manual banding lap, lap width not less than 10cm. If the grid is set above two layers, the seam should be staggered. After laying a large area, the overall adjustment of its flatness. When the cover of a layer of soil, not rolling before, should be used manually or machine tensioning grid, the strength should be uniform, so that the grid in the soil for the tension state. 3, the choice of packing: packing should be selected according to the design requirements. Practice has proved that, in addition to frozen soil, swamp soil, domestic waste, chalk, diatomite can be used as filler. However, the mechanical properties of gravelly soil and sandy soil are stable, and the water content is very small. Packing size should not be greater than 15cm, and pay attention to control the packing gradation, to ensure the compaction weight. 4, the packing of the paving and compaction: when the laying of the grid positioning, should be filled in a timely manner, the exposure time shall not exceed 48 hours, can also take the side of the laying of the backfill flow shop. First spread the filler at both ends, the grid will be fixed, and then to the central propulsion. Rolling sequence is the first two sides after the middle. When the roller compaction can not directly contact with the reinforced material, the non compacted reinforcement generally do not allow the vehicle to travel on the above, so as to avoid the dislocation. The degree of compaction is 20-30cm. Pressure...s
What are the factors that affect the quality of glass fiber reinforced plastic grid
- Synthetic resin. Synthetic resin is used as the substrate of glass fiber reinforced plastics, which is used to paste the glass fiber into a whole. Because the resin is the base material, it has influence on the elastic modulus, heat resistance, electrical insulation, permeability, chemical corrosion resistance, weather resistance, aging resistance and so on.In addition, the interface is also an important factor affecting quality. The high performance of glass fiber reinforced plastic (FRP) grid cover is related to the quality and durability of the interface between fiber and resin. The interface has a great influence on the performance of glass fiber reinforced plastic grid. As everyone knows, the glass fiber is a cylindrical glass surface, such as glass, smooth, and the surface is often firmly adsorbed with a thin layer of water film, which certainly affect the bonding properties of glass fiber and resin. Especially in textile glass fiber drawing process, in order to achieve the collection, lubrication, eliminate the static, often coated with a layer of wetting agent, the wetting agent is the most paraffin substances remained on the surface of glass fiber on them, the isolation effect on synthetic resin and glass fiber, with both adhesive.s
Geogrid and geotextile which effect is good
- Geotextile has excellent filtration, isolation, reinforcement and protection effect, high tensile strength, good permeability, high temperature resistance, anti freezing, anti-aging, corrosion resistances
Asked the retaining wall engineering grille mistook polypropylene as high density polyethylene
- What is wrong with the polypropylene in the geogrid in the retaining wall of the road? Performance will not be affected? Is there any remedy?s
In the middle of geogrid foundation treatment process is belongs to the concealed work it
- According to the definition of concealed engineerings
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