Selected Properties of Fiber Concrete after Heat Loading

The aim of the research was to test basic properties of fiber reinforced concrete with PP fibers and cement matrix subjected to heat load of various intensity. Behavior of fiber reinforced concrete was observed in particular from the point of view of change of physico-mechanical properties and microstructure after exposure of test samples to different level of heat load. Volume weight, compressive strength, tensile bending strength, splitting tensile strength and strength in tension of surface layers of concrete were observed.