Maintenance of Bituminous Roads:

The common defects noticed in a bituminous road are :

• potholes
• cracks
• rutting
• corrugations
• shoving
• stripping and loss of aggregates
• edge breaking
• loss of riding quality
• bleeding or fattened surface
• loss of skid resistance
• oxidation of bituminous surface

Potholes are repaired by cutting the damaged area to a rectangular shape, applying a tack coat and filling the area with premixed material and compacting. The premixed material is either produced with heated bitumen or preferably a cold mix made with emulsion.