What is the required range temperature of the hot mix asphalt using conventional bitumen at the time of delivery?

The required range temperature for hot mix asphalt using conventional bitumen at the time of delivery typically falls between 139°C and 163°C. This temperature range is crucial to ensure the proper workability and compaction of the asphalt mix. Within this zone, the bitumen is sufficiently fluid, allowing for adequate mixing and paving while preventing premature cooling that can lead to poor bonding or defects in the final product.

Maintaining the mix within this temperature range is also essential for achieving optimal performance characteristics in the asphalt layer once it is laid down. The materials need to be heated adequately to allow for the best reaction between the aggregates and the binder, ensuring durability and longevity of the pavement.

Understanding the implications of temperature on the asphalt's properties during delivery is vital for anyone involved in asphalt production and application. This helps to ensure the correct application techniques and performance expectations are met.