Unit : m2
Fiberglass reinforced geotextile is a new technology developed especially for the renovation projects of old highways and airport roads. The use of fiberglass mesh for road and airport improvement and improvement projects will extend the life of the newly covered asphalt concrete by up to 2 times compared with not using this geotextile layer. .
The melting temperature of the outer layer is greater than 250 degrees C.
Glass fiber melting point is greater than 820 ° C
Advantages of fiberglass reinforced geotextile
C evil steps of construction:
1. Prepare fiberglass mesh:
– During transportation and storage, the outer protective plastic film must not be removed. Only peeled off before use. Do not fold the mesh to avoid fiberglass fracture.
– Store products in storage at normal temperature and with awning to avoid rain and ultraviolet rays
2. Prepare the road foundation to be constructed:
– Fill potholes, treat cracks if necessary, as well as fix failures to create relative flatness.
– Roadbed cleaning. The roadbed must be cleaned of all types of trash as well as branches, substances that are impervious to emulsion.
3. Construction order:
– Check the quality of the emulsion so that the two layers of aspharl concrete and the fiberglass mesh are well bonded together.
– Irrigation spreads an emulsion amount according to technical standards, depending on the quality of the roadbed, cover the fiberglass mesh. In case the roadbed absorbs a lot of emulsion, another amount of emulsion must be sprinkled on the mesh, ensuring that the construction facilities can be moved on the mesh. For example: spread a thin layer of crushed stone on the mesh so that the wheels of the construction vehicles can move easily, nailed to keep the net in place or wet the wheels of the vehicles moving on the mesh. glass fiber…
– Arrange the rolls on the road axis: Pay attention to spread the fiberglass mesh correctly right from the first meters to avoid corrections to damage the folds of the fiberglass mesh.
– Continuously spread the fiberglass mesh. Spread the second roll, watering the emulsion to create adhesion on the connection between two 20cm mesh sheets. Make sure that the connection between the two rolls overlaps a length of 10 to 30 cm. Must not be less than 10cm.
– When continuing to spread the horizontal fiberglass mesh of the road, there will appear connections with 3 or 4 overlapping mesh layers. At these points, we must trim it so that there exists at most 2 overlapping layers. If the layers are superimposed more than 2, the best adhesion to aspharl layers cannot be guaranteed.
– The horizontal connection must be greater than 20 cm, according to the construction direction of the road, so the first mesh must be stacked on top of the second so that the machinery during construction is not flipping the mesh edge. Then continue to water an emulsion over these connections.
– Finally, cover with aspharl concrete.
– Cut the fiberglass mesh according to the curvature of the bend. Stack the first net to overlap the second net in the direction of road construction. At the connecting sections, it is not allowed to stack more than 2 layers of mesh on each other.- The product can be cut easily with a knife or scissors
All folds must be cut off and connected in series by placing another sheet 20 cm above the other. possible.
ATTENTION
– A leveling layer is required if the road background is not level. This is the key to get the optimal adhesion between aspharl concrete beds. That is also the factor to bond with fiberglass mesh.
– The emulsion must be evenly irrigated on the fiberglass mesh and must be bonded with aspharl concrete.
Construction units must carefully check the quality of adhesion.
Use the appropriate emulsion according to the weather. If the emulsion dries quickly, it is easier to move on the fiberglass mesh.
– Pay attention to water the emulsion at the top edge of the mesh. Do not leave empty spaces
emulsion.
– Avoid overlapping sections too wide.
– For easy access on the fiberglass mesh in hot weather, it is possible to spread a little bit of crushed stone or wet the wheels of the moving vehicles on the fiberglass mesh during construction.
– Should keep the edges of the fiberglass mesh.
– Avoid unnecessary movement on the fiberglass mesh, in special cases when the temperature is high and the construction vehicle wheels get hot. Vehicles cannot be parked on the fiberglass mesh.
– To avoid damaging the fiber mesh, the construction vehicles must not brake urgently while moving on the fiberglass mesh.
Aspharl concrete must completely cover the fiberglass mesh.
– In the case of connecting to another road surface (widening the road, filling big ditches …), at the connection point, the fiberglass mesh is not raised.
– This list is not yet complete, so all steps must be followed carefully, paying attention to the quality of the adhesion between layers of aspharl concrete required for the new structure.
– Must wear protective gloves and glasses
– While cutting the fiberglass mesh and be careful of handling the emulsion not to shoot into the body. Prepare the scissors and the knife to cut the fiber mesh, as well as the broom to aid in the watering of the emulsion.