Needing attention in repairing cracks with carbon wrap（CFRP strips）

1. Using carbon fiber fabric repair the cracks of the concrete surface, the most effective method is stick the carbon fiber cloth with the stitching, and the width is greater than or equal to 100mm, and does not allow a negative deviation;

   
   

2. When bonding carbon fiber cloth (strip), the centerline deviation should not be greater than 10mm, the length of negative deviation is not greater than 15mm;

   
   

3. If the direction of cracks is not straight, and the bend curvature is too large, you need to carried out by segment and bifurcate lapping to repair the concrete cracks, lap length should not be less than 100mm to save materials;

   
   

4. Using carbon fiber fabric closed cracks, generally only paste a layer carbon fiber. But there is impermeable requirements, you can paste two layers.Second layers of carbon cloth, the time should comply with the technical requirements of adhesives