Fig. 9

SEM images of gelling system at 2%, 6% and 10% Na2SO4 content. (25% CCS dosage). (a) CCS-Slag system (2% Na2SO4 content). (b) CCS-Slag system (6% Na2SO4 content). (c) CCS-Slag system (10% Na2SO4 content). (d) CCS-Slag + FA system (2% Na2SO4 content). (e) CCS-Slag + FA system (6% Na2SO4 content). (f) CCS-Slag + FA system (10% Na2SO4 content). (g) CCS-FA system (2% Na2SO4 content). (h) CCS-FA system (6% Na2SO4 content). (i) CCS-FA system (10% Na2SO4 content). (j) EDS mapping of point (1) (k) EDS mapping of point (2) (l) EDS mapping of point 3.