Abstract: A fibre-reinforced bar for reinforcing concrete, includes at least: a first area (1) formed by a central core and including glass fibre filament yarns or another type of reinforcement, which are affixed to one another using polymer resins; a second area (2) surrounding the first area and formed by reinforcing fabrics, preferably glass fibre, which second area, in addition to surrounding and forming a hoop around the first area, shields the first area against high temperatures; and a third area (3) including a granulate which is secured to the second area (2) using resins resistant to high temperatures.