Fly Ash/Blast Furnace Slag-Based Geopolymer as a Potential Binder for Mine Backfilling: Effect of Binder Type and Activator Concentration

Figure 3

FTIR of (a) FA and BFS and geopolymer pastes with (b) 8 M NaOH solution and (c) 16 M NaOH solution.

(a)

(b)

(c)