Traffic Loadings.
The flexibility of asphalt allows the pavement to bend slightly as vehicles travel across the pavement, and each time the pavement flexes, a very small amount of damage is caused. Heavier vehicles cause more damage than light vehicles, and aged asphalt pavements are more damaged by traffic than new asphalt pavements. Additionally, a saturated, weaker aggregate base and subgrade soils, caused by the changing seasons, allows even more damage to the asphalt pavement. Eventually, these repetitions of a small amount of damage add up and cause the pavement to crack.
Doan crack repairing series can be the best choice for your pavement.
