Preparation of a Cenosphere Curing Agent and Its Application to Foam Concrete

Table 1

The physical properties of cement and fly ash.

Cement		Fly ash
Blaine fineness (m^2/kg)	343	Particle size (45 μm sieve rate) (%)	2.9
Initial setting time (min)	91	Ratio of water demand (%)	91.0
Final setting time (min)	210	Water content (%)	0.2
Soundness	Qualified	Activity index (%)	66.0
3 d compressive strength (MPa)	28.7	Density (g/cm^3)	2.6
28 d compressive strength (MPa)	48.9	–	–