Crack filling is the process of filling longitudinal cracks in the asphalt with a hot pour crack filler in an effort to seal the cracks and prevent water penetration. Crack filler is an economical first step in increasing the longevity of your parking lot. Crack filler can help to reduce water penetration through the asphalt and into the subgrade. This helps in reducing the number of new cracks that form and protects the subgrade from the harmful effects of moisture content that will lead to premature failure of the surface layer. Water infiltration will contribute to the deterioration of your asphalt by softening your sub-base and causing the asphalt surface to flex and subsequently crack.
The process starts with cleaning the cracks of all dirt, grass, etc. We use a variety of methods to achieve this, including air lances, wire wheels, and blowers. Once clean, the sealant can be applied. We typically use products from Crafco, a leading manufacturer of asphalt sealants in the industry.
It is important to note that cracks narrower than 1/8 inch cannot be filled because there is not sufficient width for the filler to penetrate the crack. Also, extensive cracking or alligatoring areas should be repaired, not filled.
The experts at Raleigh Paving can help!
Raleigh Paving provides pavement crack filling and crack repair services. We serve the Triangle, Triad and Charlotte metro areas of North Carolina including Raleigh, Greensboro and Winston-Salem.