SUMMARY
      
      
      The steel fibre reinforced concrete (SFRC) is a result of adding short and discontinuous steel fibres to the traditional concrete. The structural impact of the presence of the steel fibres in the concrete mass is experienced mainly in cracked state, giving to the concrete the capacity to develop residual strengths and a more ductile behaviour.
      
      The short term mechanical behaviour of the SFRC has been widely studied, but the capacity to maintain these properties with time has not been studied at the same depth.
      
      Nowadays, there is still a big uncertainty about the knowledge of the flexural creep of the SFRC in cracked state.
      
      A scientific literature review has been done and structured as it follows:
* The FRC is introduced and a detailed description of the SFRC, its components, mechanical properties and tests employed to characterize the material is done.
* Then, the creep phenomenon is introduced from a general point of view and more detailed for the SFRC.
* The results of related studies are analyzed, and the variables, test methods are showed. Also, the main models to predict flexural long-term behaviour presented.
      
      A standardized methodology and equipment to test the performance of flexural creep of SFRC specimens in cracked state has not been developed up to date. In this study a methodology has been defined and a test designed to evaluate this phenomenon.
      
      The feasibility of the application of the test previously designed has been checked. It can be considered a remarkable contribution that will allow an in-depth study of the flexural creep of the SFRC in cracked state.
      
      An experimental program with variable type of concrete, fibre type and content, crack opening and amount of load applied, has been developed. The capacity of the SFRC to bear long-term flexural loads has been observed, increasing the specimen’s strains with different behaviour related with material properties and applied load.