20
CP221/271 O221EN5
Low tire pressure
– 240 kPa (34.8 psi)
Fig. 23 Low pressure, larger area
GROUND PRESSURE
The lower the tire pressure the lower the pressure on
the contact surface, ie, due to the larger contact area.
Used on very loose material.
Used for degradation run.
Normal tire pressure
– 480 kPa (69.6 psi)
Fig. 24 Normal pressure
High tire pressure
– 830 kPa (120.4 psi)
Fig. 25 High pressure, smaller area
The higher the tire pressure the higher the contact
pressure.
Used on thicker courses and finishing run.
