During which phase should vibratory rollers not be operated in vibratory mode?

In the context of pavement construction, vibratory rollers play a crucial role in the compaction of asphalt and other materials. The finish rolling phase is when the surface is being prepared for final presentation and must achieve a smooth, uniform appearance. During this stage, operating vibratory rollers in vibratory mode can lead to an undesirable texture or surface damage, affecting the overall quality of the pavement.

When vibratory rollers are used in this phase, the aggressive vibration can cause the material to move or shift, which compromises the smoothness required for the finished product. Therefore, it is essential to use the roller in static mode during the finish rolling phase to ensure that the surface achieves the specifications for flatness and aesthetics. This careful operation helps in providing a high-quality finish that meets the desired standards for roadways.