When should each load of asphalt be monitored?

Monitoring each load of asphalt is crucial for ensuring the quality and performance of the pavement. The correct choice emphasizes that monitoring is specifically necessary when the mix is within the master range. This is because the master range represents the optimal temperature and conditions for the asphalt mix to achieve its desired properties and workability.

When the asphalt is at the proper temperature within the master range, it is more likely to achieve a good bond and compaction during installation, affecting the overall longevity and durability of the pavement. By focusing monitoring efforts when the mix is within this range, workers can catch any deviations early, allowing for corrections that maintain the integrity of the asphalt.

Other considerations, such as environmental factors, may influence the need for monitoring, but the primary focus should remain on ensuring that the mix meets specified criteria that support effective paving operations.