Crack Repair

Cracks in pavements occur for many reasons including initial shrinkage, evaporation of surface water, uneven supports with heavy loads, and thermal movements.  Many of these situations can present opportunities for repair that will perform well over time.

One proven method of repair cracks is by the use of carbon fiber stitches, and the use of low viscosity polyurethane.  Modern Urethanes can reach high strengths and be flexible or rigid. 

Traditional stitching involves cutting 2 parallel slits perpendicular to the crack, inserting a rebar dowel and filling with epoxy.  By cutting one stitch and inserting a flat slat of carbon fiber we can achieve the following advantages:

• Stronger: The carbon fiber laminate is much stronger than the rebar dowel
• Less invasive: less cutting, chipping and patching
• Less material use.  Only a small area on each side of the carbon fiber
• Faster