Fire Testing of Concrete Slabs Strengthened with Fibre Composite Laminates

Strenghtening of concrete elements by means of fibre composite laminates is an efficient technique for repairing or strenghtening of concrete elements. These fibre composite laminates are glued with epoxy resin to the concrete surface. In case of fire, the bond between the composite laminates and the concrete will be lost very quickly because of the low glass transition temperature of the epoxy. So there is a need for thermal protection of the external strengthening system of these elements. Fire tests on strengthened and protected slabs, loaded to service load level, are executed to evaluate fire resistance of these elements. Temperatures and deformations are measured during testing. The testing parameters of these elements include the use of different thermal protections (including different materials and geometric layouts of the protection) of the glued reinforcement.

• INTRODUCTION

• SURVEY OF THE EXPERIMENTAL PROGRAMME

• TEST RESULTS

• CONCLUSIONS

• References