Geogrids for asphalt layers
GEOMETRIES FOR ASPHALT LAYERS
Problem:
When the useful life of a road corridor comes to an end, it can present significant deterioration in the asphalt layer, not only on the road, but also on viaducts, tunnels and bridges, and that is where it is important to intervene in the corridor in order to return to excellent condition pavement. The most common deteriorations are the following:
• Detachment of asphalt layer.
• Loose granular material.
• Longitudinal and transverse cracks.
• Block cracks.
• Crocodile skin.
• Rutting.
• Settlements and/or subsidence on the pavement structure.
• Deterioration in the joints of vehicular bridges
• Detachment of material.
• Signage.
• Lighting in the tunnels, and detachment of material in these structures.
Solution:
In order to rehabilitate, reinforce and control the reflection of existing discontinuities in the road, the use of a type geogrid is recommended. FORTGRID ASPHALT between the surface resulting from milling and new asphalt layer or between two new asphalt layers, as seen in Figure 1.


geogrids FORTGRID ASPHALT They are used in road construction and asphalt pavement applications to improve the strength and durability of asphalt layers. These geogrids are geosynthetic materials made of high tenacity polyester that are placed in the pavement to help distribute loads and reduce cracking and deformation of the asphalt mixture.