Poor bond between CFRP and concrete,why?

1. Not used correctly of the primer adhesive, level adhesive, carbon fiber adhesive. How to use these adhesive normally, you can refer to the instructions

2. Operators' construction skills are not standard， professional training

3. The concrete surface is not properly polished and cleaned. The surface of the concrete should be rubbed off and exposed to solid concrete. The dust on the surface should be blown clean and cleaned with acetone.

3. Concrete surface moisture or humidity in the air, to comply with the relevant standards of the state, avoid the construction in high humidity under adverse weather conditions; ventilation and dehumidification, before construction should open the doors and windows for ventilation, reduce the humidity and temperature; avoid the construction of a large area near the wet component to work at the same time;

4. The concrete humidity is large in the curing period, the construction time can be postponed or the drying and dehumidification of the base surface can be dehumed.