Why is it important to control the temperature during asphalt paving?

Controlling the temperature during asphalt paving is crucial for achieving adequate compaction and preventing segregation. Asphalt mix needs to be at the appropriate temperature when it is laid down to ensure that it can be compacted adequately with the equipment being used. If the mix is too cold, it will not compact sufficiently, leading to a weaker pavement structure and potential long-term problems such as cracks and ruts.

Additionally, proper temperature control minimizes the risk of segregation, which can occur when the heavier aggregates settle out of the mix due to temperature differentials. Segregation can result in areas of varying density and performance within the pavement, leading to uneven wear and compromised durability. Overall, maintaining the right temperature is essential for ensuring the longevity and performance of the asphalt pavement.