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

Table 4

Long-term immersion test program.

Number	Alkali exciter	Curing age (day)	NaCl solution concentration (%)	Na2SO4 solution concentration (%)	Long-term immersion time (day)
NO	NaOH	28	0, 5	0	0, 5, 10, 20, 30
			0	5