Strength and Microscopic Characteristics of Slag-Based Geopolymer-Solidified Sludge after Dry–Wet Cycling with Chloride Salt Solutions

Figure 1

Sludge used in the experiment. (a) Air-dried sludge. (b) Sludge ground with a 2 mm sieve. (c) Microscopic diagram of sludge.

(a)

(b)

(c)