Development and Characterization of Norite-Based Cementitious Binder from an Ilmenite Mine Waste Stream

Table 4

Compressive strength of the binders without any additives. The specimens were cured at 87°C and ambient pressure.

Specimen 1
Norite; (g)	Alkali sol.	Wt. of alkali sol. (g)	L/S ratio	Curing time; (days)	Estimated compressive strength; (±2 MPa)
300	8 M NaOH	125	0.42	5	2.5
300	8 M NaOH	125	0.42	7	3
300	8 M NaOH	125	0.42	14	23
300	8 M NaOH	125	0.42	28	24