How to strengthen by prestressed carbon fiber plate?

1. Precisely position and pay off the position of carbon plate and anchor.

   
   

2.Drill and grind in the corresponding position according to the design requirements. Slot along the anchoring area at both ends to a depth of approximately 3 cm.

3.After the slotting is completed, use the repair glue to repair and smooth it after it is completely cured. High-strength chemical bolts are implanted, or high-strength mechanical anchor bolts are used.

4. Install the limit frames at both ends, and place the anchor blocks in the limit frames, keeping the center lines at both ends consistent and fixed. Make sure that the tensioned anchor block can slide freely within the limit frame.

5. Horse Construction carbon fiber plate cut 5-10cm at both ends of the cut length. Insert the carbon plate into the anchor hole of the anchorage, slide the tension anchor block to the starting position, and clamp it with a clamp.

6.A high-strength screw, a washer, a nut, a stopper, and a jack are sequentially installed on the tensioning end, and adjusted to the top tightness. The direction of the jack's force coincides with the centerline of the carbon plate.

7.Take protective measures on site and start pre-tensioning to ensure construction safety. After pre-tensioning and unloading, evenly apply carbon plate adhesive on the surface of the carbon plate.

8. Subsequent formal tensioning is then performed. After each stage of tensioning, it is necessary to hold the load for 3-5 minutes. At the same time, the corresponding tensile force and elongation are recorded, and then the lower stage tensioning is performed.

9.After tensioning, tighten the nut, remove the jack, and cut off the long screw. Install a tablet every 2 meters to fix and press slightly.

10.Finally, fireproof and anticorrosive paint is used to protect the anchorage and carbon plate.