The common feature in all the graphs is that the amount of hydroxides consumed is higher for samples
sieved through BSS50 (i.e. 0.3mm) than that for BSS25 (i.e. 0.6mm). It indicates that smaller the particle size,
higher is the surface area available, and thus, more is carbonation in the sample. We can see from Fig.3 that
for incinerator ash, the results are as expected. The carbonation extent increases with increasing ash content