When should surface moisture be addressed in asphalt work?

Addressing surface moisture before compaction is crucial in asphalt work because moisture can significantly impact the bonding and integrity of the asphalt layer. If the surface is too wet when asphalt is applied, it can lead to a range of issues, including poor adhesion between layers, which may result in premature failure, stripping, or raveling of the asphalt surface.

Properly managing surface moisture ensures that the asphalt can compact effectively and achieve the desired density and durability. This is particularly important as the compaction process requires the asphalt to be in a specific temperature range to ensure proper bonding and stability. By focusing on surface moisture before the compaction phase, you help secure a strong foundation for the asphalt layer, leading to better performance under traffic loads.