Everyone knows the construction process of carbon fiber wrap reinforcement, but there are certain skills when pasting carbon fiber wrap. The following is organized into a jingle for everyone to understand and remember. Remember, you are also a master of "Kung Fu moves"!

Move 1: Surface cleaning should be in place, and then repaired to level it

The carbon fiber wrap must be pasted to the structural surface, and the cracked areas need to be surface sealed and grouted. If the component to be reinforced has white ash, it needs to be removed, and if there is a concrete cushion, the concrete cushion must be removed. After the removal is completed, fresh concrete is exposed, and then the reinforced base surface is repaired and leveled with structural repair glue.

Move 2: It is not feasible to have water on the base surface, keep it dry and then paste it

The concrete base surface that needs to be reinforced should be kept dry, and the moisture content of the base surface should be dried or pasted with a special moist impregnating glue.

Move 3: No need for angular cross-section, remember to grind it into a curved surface

The corner position should be processed into a smooth arc structure, and the radius should be greater than 20mm

Move 4: Where does the scraper go, it must go in the same direction

The pasting of the carbon fiber wrap should be specified at a specific position, and then the surface should be rolled with a roller to ensure that there are no air bubbles and other problems inside, and be careful not to damage the surface of the carbon fiber wrap. In addition, if there is unevenness on the concrete surface, a scraper should be used for leveling treatment, and the scraping and pressing direction should be carried out in the same direction.

Move 5: Pay attention to the expiry date of the carbon glue, and discard it beyond the time limit

Carbon fiber impregnating glue should pay attention to its pot life when stirring and using it. If it exceeds the pot life, it should not be used again.

Move 6: Touch dry and stick it up, the delay is over 12 hours

When the carbon fiber wrap is pasted in multiple layers, the next layer should be pasted immediately when the surface glue of the carbon wrap is dry to the touch. If the delay time exceeds one hour, you should wait 12 hours before sticking according to the above steps.

Move 7: The carbon wrap lap is stressed, and the length of the force is 20 times longer

When the carbon wrap is lapped, the lap length in the direction of force should not be less than 20cm.

Move 8: The carbon glue can be heated in winter, and alcohol is strictly prohibited

Note that it is normal for the carbon fiber impregnating glue to be a little sticky during construction in winter. If it is too thick and affects normal construction, the glue should be heated. It is strictly forbidden to add organic solvents such as alcohol to the colloid.

Move nine: carbon wrap and carbon glue with the same brand, experiment on different brands

The carbon fiber wrap and the impregnating glue should be of the same brand, otherwise a suitability test needs to be done.

Move ten: carbon wrap drilling as few as possible, the force area will be bad

Try not to drill holes on the pasted carbon wrap, which will reduce the stress area of the carbon fiber wrap and affect the quality of reinforcement.