EFFECT OF CREEP OF POLYMERIC FIBRES ON DEFORMATION OF FIBRE CONCRETE BEAM ELEMENTS UNDER THE LONG-TERM LOADING

The paper deals with behaviour of fibre concrete members with polymeric fibres after formation of macro-crack. The polymeric fibres creep under long-term loading. For steel fibres the effect of creep can be neglected. The creep of polymeric fibres after cracking can significantly affect the service-ability limit state design. The paper presents long-term experimental research that shall verify significance of the creep effect on the long-term behaviour of the fibre concrete element with polymeric fibres.