How to lay glass fiber geogrid during high-temperature construction
As the glass fiber geogrid has high tensile strength and low elongation in both warp and junction directions, and has excellent performance such as high temperature resistance, low cold resistance, aging resistance, corrosion resistance, it is widely used in asphalt pavement, cement pavement and subgrade reinforcement, railway subgrade, embankment slope protection, airport runway, sand prevention, sand control and other projects. The main function of asphalt overlay and glass fiber geogrid on the old cement concrete pavement is to improve the use function of the pavement, but they have little contribution to the bearing effect. The rigid concrete pavement under the overlay still plays a key bearing role. The asphalt overlay on the old asphalt concrete pavement is different, and the asphalt overlay will bear the load together with the old asphalt concrete pavement.
In hot times, during high temperature construction, due to the adhesion of emulsified asphalt to the wheels, which can cause the glass fiber geogrid to roll up inside the wheels. At this time, it is necessary to fix the geogrid with high carbon steel nails after laying it to avoid the wheels rolling up the geogrid.
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Post time: Apr-07-2023