Crack sealing is the first line of Attack in a pavement maintenance program. Done properly it can add 5-7 years or more to a pavements lifecycle. Studies indicate that the longest lasting method is performed in 3 steps:
1. Prep the Crack with either a router or random crack saw. This opens up the crack, creates a reservoir and preps the edge for better bonding. Rout or Saw? The most common approach is Saw Concrete, Rout Asphalt.
2. Clean the crack with dry, clean compressed air or for the best results, use a Heat lance. A heatlance removes not only dirt but moisture and vegetation. The heat lance also heats the old surface which helps in bonding with the new sealant. THE CLEANING PROCESS IS THE MOST IMPORTANT PART OF THE PROCESS.
3. Seal the crack with a quality Polymer modified brand name rubberized hot-pour sealant. Hot-pour sealant is proven to last up to 10 times longer the cold applied products in flexible pavements.
