In the last two years, composite SFRC floor slabs at ambient and at elevated temperature have been tested at the Czech Technical University in Prague. At elevated temperatures, the floor was only partially fire protected. Intermediate beams and SFRC slab in steel sheeting remained unprotected. Concrete slabs were reinforced by steel fibres only without added steel bars. The main aim of the tests was to demonstrate the sufficient properties of the SFRC slab in fire. For the fire resistance of the floor slabs, it is important for the material to have sufficient ductility and adequate tensile and shear strength. These material properties of the SFRC allow for the slab to create a different load bearing mechanism, which increases its fire resistance. Hence, the SFRC slabs have been tested at ambient and at elevated temperature with a focus on ductility and tensile strength of the material.