Study of Foamed Concrete from Activated Ash/Slag Blended Cement
An ecotype of foamed concrete was prepared from activated fly ash/slag blended cement, a kind of low carbon cement, through physical foaming and hydrothermal curing process. The optimized material proportion and curing conditions were obtained with the aid of orthogonal array technique: activated fly ash/slag blended cement-600 kg and foaming agent-1kg for per cubic meter formed concrete, curing at 60°C for 6 hours. The density and compressive strength of the foamed concrete prepared in this method were 644kg/m3 and 4.5MP respectively, and with lower drying shrinkage and thermal conductivity, good freezing and thawing characteristics.
Guojun Zhang and Jessica Xu
F. Q. Zhao et al., "Study of Foamed Concrete from Activated Ash/Slag Blended Cement", Advanced Materials Research, Vols. 160-162, pp. 821-826, 2011