Shoving in road pavement is caused by :
1. Lateral Forces ๐ฆ: Frequent braking and sharp turns at intersections create horizontal forces, pushing the pavement sideways, which leads to deformation over time.
2. Weak Asphalt Mix ๐ : An improperly designed asphalt mix lacks the strength to withstand traffic stresses, making the pavement more prone to shifting and wear.
3. Poor Compaction ๐จ: Insufficient compaction during construction results in unstable layers that cannot handle the weight of vehicles, causing movement or buckling.
4. Moisture Infiltration ๐ง: Water that seeps into the pavement weakens the underlying layers, creating soft spots, which increases the risk of shoving.
5. Temperature Changes ๐ก: Thermal expansion and contraction due to temperature fluctuations cause the pavement to move, worsening shoving in areas already prone to stress.
Prevention: Using a strong asphalt mix, ensuring proper compaction during construction, and maintaining effective drainage can prevent pavement shoving.