Fresh properties - Consistence SCC
The measured slump flow
(4C-Rheometer) of the three self-compacting concrete types is shown
below. All three SCCs and particularly Mix J exhibited a tendency
to a continued increase in fluidity with time after completion of
the mixing sequence.
Seven out of nine castings were
completed with slump flows within the target range of 580 ± 30 mm,
while one casting was performed with a slump flow of 620 mm and
another at 540 mm.
![Fehmarn_SlumpFlow](/media/5457/fehmarn_slumpflow_550x360.jpg)
The measured yield stress
(4C-Rheometer) of the three self-compacting concrete types is shown
below. The measured values range from 34 to 63 Pa except for one
measurement at 122 Pa (the low slump flow batch of Mix J).
![Fehmarn_YieldStress](/media/5462/fehmarn_yieldstress_550x360.jpg)
The measured plastic viscosity
(4C-Rheometer) of the three self-compacting concrete types is shown
below. The measured values range from 38 to 91 Pa∙s. As such
the three SCCs all have rather similar plastic viscosities that
fall within the medium plastic viscosity range according to the
Danish "Guidelines for execution of SCC".
![Fehmarn_Viscosity](/media/5467/fehmarn_viscosity_550x360.jpg)
The measured t500
(4C-Rheometer) of the three self-compacting concrete types is shown
below. The measured values range from 3 to 6 seconds, i.e. they all
correspond to viscosity class VS2 according to EN 206-9:2009. No
value was recorded for the Mix J "Large block 2" batch as the slump
flow was less than 500 mm.
![t500](/media/5472/fehmarn_t500_550x360.jpg)