Along with proper drainage, crack sealing is probably the most important maintenance activity. Pavement distresses can be related to the intrusion of water into the pavement structure. If water is kept out of the pavement the majority of distresses can be stopped or delayed resulting in a longer life to your pavement.
Crack sealing has two primary purposes:
- To prevent the intrusion of water through the crack into the underlying pavement structure.
- To prevent extraneous materials from entering the crack and causing further deterioration as the pavement expands and contracts with temperature changes.