Ignition and high temperatures can severely affect FRP performance (strength, stiffness, Young's modulus). Fiber itself is not sensitive to temperature, but when used for reinforcement, the glue is not resistant to fire and high temperature. Specific performance in the following aspects.

1. The strength and stiffness of FRP

If FRP is exposed to high temperatures, both strength and stiffness will decrease. Carbon fiber reinforced plastics are not sensitive to high temperatures, but the strength and stiffness of composite materials decrease above 200 ° C. When exposed to a maximum operating temperature of 60 ° C, the tensile strength and elastic modulus of CFRP, GFRP, and AFRP decrease by 10%, 20%, and 30%, respectively. As the temperature increases, the tensile strength of FRP decreases

2. Bonding performance of FRP

At temperatures above the glass transition temperature, the bonding properties of FRP can be greatly reduced. The bonding of FRP depends on the shear properties of the matrix or adhesive.

3.Fire resistance of FRP reinforced concrete members

In order for FRP to exhibit satisfactory fire resistance, structural elements reinforced with externally bonded FRP should be insulated.

Therefore, Horse Construction recommends that after using carbon fiber reinforcement, be sure to cover the surface with a fireproof and anticorrosive coating.