An experimental programme was performed in order to evaluate the
behaviour of composite materials when exposed to fire, in particular
composite materials based on carbon fibres (CFRP). Therefore, a
campaign of tests on concrete specimens with 100×100×40 mm
was developed. The CFRP sheet is bonded on the surface of the
specimens using epoxy resin and exposed to thermal action.
The influence of passive protection systems on the burning behaviour
of CFRP is analysed using different fire protection materials, such as
gypsum plasterboard and intumescent paint.
The surface of the reinforcement system is exposed to the action
of different radiant fluxes equal to 35 kW/m2 and 75 kW/m2, from
a cone calorimeter. The temperature evolution is determined by
thermocouples placed between the concrete surface and CFRP,
allowing to analyse the influence of these protective materials in the
structural reinforcement capabilities of the CFRP when subjected to
high temperatures.
