The essence of the paper is an experimental analysis of shear stress in the bond between steel reinforcement and cement-composite material UHPC (Ultra High Performance Concrete), with dispersed steel fibres. This unique high-strength material has compressive strength higher than 150 MPa and simple tension strength higher than 10 MPa. Currently, many institutions study this new material and no uniform rules for design and practical application of UHPC exist yet. Due to the exceptional properties of UHPC, the shear stress in the bond between the reinforcement and concrete and its distribution along the anchorage length of the reinforcement are the key parameters for the design of advanced structures made of UHPC with emphasis on their reliability and long-term durability. Only a little information about the interaction between reinforcement and UHPC has been available, and a study of this phenomenon within the project is essential for its better understanding and implementation to the design rules.
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