The effect of the use of fibre for controlling early age shrinkage is well-known, although there is no generally accepted method to make calculations on it. One of the biggest advantages could be to increase the dilatations and/or joints distances with the use of the fibres. The effect of the fibre during hardening was measured in our laboratory at different ages and the results were implemented into a time-dependent material model. The crack propagation and crack widths were determined for different floors, where the connection between the concrete and the subgrade was changed. Results show very good effects of both synthetic and steel fibre reinforcement types.
#CCC #earlyage #shrinkage #FRC #jointlessfloor
