What is the typical temperature range for laying asphalt?

The typical temperature range for laying asphalt is crucial for achieving optimal compaction and longevity of the pavement. When asphalt is placed at the right temperature, it remains workable, allowing for proper compaction and adhesion with aggregate particles.

The range of 250°F to 300°F is generally recognized as the appropriate heating level for hot mix asphalt. At this temperature, the asphalt binder is sufficiently fluid, ensuring effective coating of the aggregates and facilitating the necessary compaction under roller equipment. If the asphalt is laid at lower temperatures, it can result in inadequate compaction, which may lead to surface distresses such as raveling or cracking over time.

Temperatures above this range, while they can be achieved, are typically avoided because they can lead to issues such as increased fume emissions and the potential for overheating and damaging the binder, ultimately compromising the performance and durability of the pavement. Thus, maintaining the laying temperature within the range of 250°F to 300°F is key to ensuring high-quality asphalt installation.