Paving is a structure that is placed between the foundation and the running surface, its purpose is to facilitate vehicular circulation quickly and safely. Among the types of pavement, we find the flexible pavement, which is a structure that flexes according to the loads that pass through the structure. They can present a series of failures produced by the passage of time or the large amount of load it has to bear.
Failures presented by flexible pavements:
- Edge cracks: Damages that originate parallel to the pavement. They are produced by weakening by the climate, among others.
- Crocodile skin: These are interconnected fissures, which show that the pavement has become oxidized or hardened. It is caused by the fatigue of the asphalt layers.
- Reflected cracks: They occur when an asphalt layer is placed on a rigid pavement plate.
- Cracks in blocks: They divide the pavement into rectangular blocks. It is due to the action of the weather and the shrinkage of the asphalt.
- Fatigue cracks: These irregular figures begin at the bottom of the asphalt layers where the tensile stresses are greater.
- Longitudinal and transverse cracks: Their appearance indicates a tensile stress in some of its layers due to the fact that some material used in its construction has already lost its resistance.