Preparation and Performance of Vanadium Tailings-Reservoir Sediment-Phosphogypsum-Based Foamed Concrete

Table 3

Physical properties of OPC.

Fineness (residue on 80 μm sieve) (%)	Normal consistency (%)	Setting time (min)		Stability	Flexural strength (MPa)		Compressive strength (MPa)
		Initial setting	Final setting		3 d	28 d	3 d	28 d
22.13	27.2	118	190	Qualified	5.3	8.8	32.5	59.7