The liquid asphalt binder holds the pavement together and waterproofs the pavement. When moisture gets to the surface of the aggregate it can break the asphalt - aggregate bond, causing the pavement to disintegrate.
Causes
- Poor Asphalt / Aggregate Bond
- Excess Dust
- Clay/ Deleterious Fines
- Lean Mixes
- Poor drainage
- Cracks allowing moisture intrusion
Solutions - Cures
Once the material exhibits serious moisture damage, if it is left anywhere within the pavement structure it will continue to cause problems.
Solutions - Prevention