the introduction of fibers in the composite leads to a change of the structure, properties and manufacturing technology of the material. This paper presents method of calculation of the compositions disperse-reinforced sulfur materials. Presents formulas to determine the total surface of the filler particles and fibers; surface, number and volume of fibres; the reinforcement ratio; the volume fraction of the filler; mass of sulphur, filler, fibres and modifiers

Keywords: designing, sulfur, sulfur concrete, sulfur cement, dispersion-reinforced material, composite, filler, fiber, optimization of the composition, volume fraction, the reinforcement ratio, density, structure