S/s products were prepared with varying APC residue/binder
ratios and mix water contents. Samples were prepared with CEM I
or ggbs additions of 10, 20 and 50 wt.% of total dry mass and water to
solids (w/s) ratios between 0.4 and 0.8. CEM I or another alkali activator
was not used with ggbs because the free lime and alkalis in the
APCresidues can activate the ggbs and initiate pozzolanic hydration
reactions. The ranges for binder addition and w/s ratios were based
on industrial applicability considerations for commercial viability
(i.e. cost of binder) and workability, as well as performance of the
S/S matrices.