Through standard fire tests on 5 reinforced concrete slabs

which are non-strengthened

strengthened with carbon fibre reinforced polymer（CFRP） by using organic or inorganic adhesives

protected with the fireproofing coating or not

respectively

the influences of adhesive type and the fireproofing coating on the failure modes

the displacement at the mid-span

the fire resistance limit

and so on

have been investigated.The experimental results show that the reinforced concrete slabs strengthened by inorganic adhesive-based FRP composites without fireproofing coating have good fire-resistant performance;the reinforced concrete slabs strengthened by organic adhesive-based FRP composites without fireproofing coating have bad fire-resistant performance;and the temperature of the CFRP composites in the strengthened system can be reduced effectively by using proper fireproofing measures

so that the bond strength between FRP and concrete can be guaranteed.