Prestressed CFRP laminate, the technology for the component needs to be strengthened with carbon fiber coated with epoxy adhesive for prestressed tension, in order to deformation and crack closure repair beams, and then exteranlly bonded carbon fiber laminate, anchored in the component, improve its bearing capacity.

Advantages of Prestressed CFRP laminate

1.Passive reinforcement to active reinforcement.

2.The high strength properties of CFRP (carbon fiber reinforced polymer) can be brought into play in advance, and there will be greater strain before the two force, which can effectively reduce or even eliminate the phenomenon of CFRP sheet strain lag, and achieve better reinforcement effect.

3.Reverse bending due to prestress, can offset part of the initial load, improve the bearing capacity of the use phase, the original component crack width reduced or even closed, and limit the new cracks, so as to improve the structural stiffness, deflection of the original component, improve the performance of the stage.

4.The deformation of carbon fiber = initial deformation + load induced deformation, and the shear deformation corresponding to the two parts of the adhesive is distributed in the two ends of the component and the middle span area, so that the shear deformation distribution of the adhesive is more uniform, and the bond failure can be effectively avoided.