Keyword: «railway track.»

The article presents the results of research on the use of fiber concrete as a material for the production of reinforced concrete sleepers. The advantages of dispersed reinforcement compared to traditional rod reinforcement are substantiated, and the regulatory requirements for concrete for underrail bases according to Russian standards are presented. The analysis of the composition of the fiber concrete mixture, the technology of molding, and the strength indicators is conducted. Recommendations are given for optimizing the dosage of steel fiber and the modes of heat and moisture treatment. It has been shown that the use of fiber concrete can increase the crack resistance, durability, and fatigue strength of sleepers, as well as reduce the labor intensity of production.