The ratio of the silicates (C3S 1 C2S) to the fluxes (C3A 1
C4AF) is stated to decrease with increasing work index of
the clinkers [2].
The relationship between the ratios of silicates
to fluxes of the clinkers used in this investigation and
the grinding energy consumption calculated by using the
constants A and B given in Table 4 is shown in Fig. 6 for
three different specific surface areas (2800, 3400, and 4000
cm2/g).
The overall relationship (solid line) indicates that
grinding energy requirement reduces with increasing ratio.
However, an interesting feature of Fig. 6 is that there occurs
almost no change in energy requirement for the ratio values
.4
For values ,4, the relationship assumes a parabolic
shape (dashed line). For a ratio of 3.70, the grinding energy
is minimum. The energy trough becomes deeper as the required
fineness increases.