Which factor can negatively impact the longevity of asphalt pavement?

Inadequate sealing practices can significantly detract from the longevity of asphalt pavement. Sealing serves a critical role in protecting the surface of the asphalt from environmental elements, such as water, ultraviolet rays, and chemical spills, which can lead to deterioration over time. When sealing is not performed adequately or is neglected, these damaging factors can penetrate the pavement, causing raveling, cracking, and ultimately reduced structural integrity.

Low traffic volume, for instance, generally does not impose significant stress on asphalt and might even contribute to its longevity due to less wear. High-quality aggregates are essential for creating a strong pavement structure and help enhance durability and performance. Proper temperature control during mixing and laying down asphalt is crucial for achieving optimal compaction and bonding, thereby protecting the pavement’s longevity. Each of these factors contributes positively to extending the life of the asphalt, highlighting the critical importance of proper sealing practices.