When rolling, what is one potential negative outcome of moving too fast?

Moving too fast while rolling can lead to the breakdown of the mix. This is because the rolling process is critical to achieving the desired density and surface integrity of a roadway. If the roller is moving too quickly, the compaction may not be uniform, resulting in insufficient bonding between the asphalt particles. This can cause voids within the mix, leading to a weaker structure that is susceptible to early deterioration, cracking, and other failures.

The rolling speed must be carefully controlled to ensure that the material is adequately compacted without being damaged. A slower, more deliberate approach during this process allows the roller to adequately compress the asphalt mix while maintaining its integrity. Faster speeds can disrupt this balance, resulting in a compromised final product. Thus, a proper understanding of rolling speed is essential for achieving optimal performance and durability in roadway construction.