Review article

The article presents the results of the study of the process of determining the characteristics and extent of interaction of the Durus S500 synthetic macro-fiber with cement stone and the critical fiber length basing on the methodology, which takes into account the distribution and orientation of the reinforcing fibers in samples, describing the nature and conditions of their co-operation. The experimental data for assigning the minimum fiber consumption required for providing a reinforcing effect and an equation for calculating the adhesion characteristics are presented. The value of tangential stresses obtained as a result of the study, which characterizes the degree of interaction of fiber with cement stone in fiber concrete, was 0.98 MPa. The critical length of the Durus S500 macro fiber, at which with maximum stresses in the fibro-reinforced specimen there took place rupture, was 29 mm.