How Does Geogrid Solve Pavement Problems?

Geogrid is a major geosynthetic material. Compared with other geosynthetics, it has unique performance and efficacy. It is often used as the reinforcement of reinforced soil structure or the reinforcement of composite materials. Geogrid is divided into four categories: plastic geogrid, steel-plastic geogrid, glass fiber geogrid and polyester warp-knitted polyester geogrid. The grid is a two-dimensional grid or a three-dimensional grid screen with a certain height, which is made of polypropylene, polyvinyl chloride and other high molecular polymers through thermoplastic or molding. When used in civil engineering, it is called geotechnical engineering.

Cement concrete pavement due to poor rigidity and deformability, a group of local uneven settlement, changing the stress state and its operating conditions, increasing the internal stress of the concrete block, resulting in damaged concrete blocks and reducing the life of the concrete pavement.

How to solve this problem more pavement damage it? The excellent characteristics of geogrid and special surface treatment, three effects. First, laying the geogrid improves the overall strength of the base on the lime soil on the surface of the base. Then spray a layer of hydrothermal asphalt heavy oil (oil or binder layer), which can effectively prevent rainwater lime soil erosion on the surface of the substrate layer, thereby prolonging the life of the lime soil base. Secondly, the geogrid can effectively prevent cracking due to the fatigue of the base lime soil, and the crack upwards caused by low-temperature shrinkage of the cracked cement pavement caused by reflection cracks.

The geogrid reinforced concrete can be used as the reinforced concrete as a strengthening member, and the pavement load stress can be spread evenly to prevent reflection cracks, thereby prolonging the life of the concrete pavement.