Biaxial tensile polypropylene geogrid is made of high molecular polymer through extrusion, plate forming and punching, and then longitudinal and transverse stretching. The material has great tensile strength in both longitudinal and transverse directions.

This kind of structure can also provide an ideal chain system for more effective bearing and diffusion of force in soil, which is suitable for the reinforcement of foundation with large-area permanent bearing. The application of glass fiber geogrid in asphalt overlay greatly improves the tensile strength of asphalt concrete and can resist large tensile stress without damage.

In addition, even if the stress at the crack location is too concentrated due to cracks in local areas, it will gradually disappear through the transmission of glass fiber geogrid, and the cracks will no longer develop into cracks.

When selecting the glass fiber geogrid, in addition to its performance indexes meeting the provisions of the above table, special attention shall be paid to ensure that its width is not less than 1.5m, so as to ensure that it has sufficient cross-sectional area to fully dissipate the crack energy when it is used as the interlayer for controlling the reflection crack; At the same time,

The mesh size should be 0.5~1.0 times of the large particle size of the asphalt surface material on it, which helps to achieve good shear adhesive viscosity and promote aggregate interlocking and restriction. Common biaxially oriented polypropylene film, heat sealed biaxially oriented polypropylene film, cigarette packaging film, biaxially oriented polypropylene pearlescent film, biaxially oriented polypropylene metallized film, extinction film, etc