Proc. of the 7th Int. RILEM Symp. on Fibre Reinforced Concrete: Design and Applications (BEFIB2008) pages:719-728
7th Int. RILEM Symp. on Fibre Reinforced Concrete: Design and Applications (BEFIB2008) location:Chennai date:17-19 September 2008
Self-compacting fibre reinforced concrete (SCFRC) combines the benefits of SCC in the fresh state with an enhanced postcracking performance in the hardened state thanks to the fibres.
The main properties of SCFRC in the fresh state will be affected by the fibres. The beneficial effect of the fibres in the hardened state (i.e. postcracking resistance) will, among other factors, depend on their orientation in the cracked section. One could suppose that fibres orient along the flow due to the effect of the walls and the velocity profile in the concrete flow.
To investigate the influence of hooked-end fibres on the fresh and hardened behaviour of SCFRC, a research program is started at the Reyntjens Laboratory, Department of Civil Engineering, K.U.Leuven. The following parameters are investigated: length of the fibre, flow distance of the concrete and type of concrete (SCFRC and traditionally vibrated fibre reinforced concrete (TFRC)).
Both the fresh properties of SCFRC and the mechanical characteristics in the hardened state (bending test according to EN 14651:2005, orientation analysis by X-ray detection and fibre counting) are determined.