Development of a Zero-Cement Binder Using Slag, Fly Ash, and Rice Husk Ash with Chemical Activator

Table 4

Consistency and setting time of Z-Cem and OPC.

Binder	Normal consistency (%)	Setting time (h:min) with 5% activators
		Initial			Final
		Ca(OH)2	KOH	NaOH	Ca(OH)2	KOH	NaOH
Z-Cem 1	32.5	5:45	1:50	0:21	8:10	3:40	1:30
Z-Cem 2	35.8	7:10	3:40	0:42	—	—	2:20
Z-Cem 3	39.0	—	—	0:50	—	—	3:15
Z-Cem 4	42.5	—	—	1:10	—	—	3:40
Z-Cem 5	33.5	6:05	2:05	0:30	8:40	4:20	2:05
OPC	30.5	2:35			5:25

—: not determined exactly because setting time is more than 12 hours.