Research Article
Experimental Study of Ultralight (<300 kg/m3) Foamed Concrete
Table 1
Chemical properties of the cement and the fly ash that were used.
| | | Cement | Fly ash | | | % by mass | GB175-2007 | % by mass | GB/T1596-2005 |
| | SiO2 | 21.84 | — | 48.2 | — | | CaO | 65.23 | — | 19.6 | — | | Al2O3 | 5.23 | — | 18.4 | — | | Fe2O3 | 3.30 | — | 3.7 | — | | SO3 | 0.98 | ≤3.5 | 1.7 | ≤3.0 | | MgO | 2.76 | ≤5 | 1.1 | — | | K2O + Na2O | 1.6 | — | — | — | | Loss on ignition | 1.5 | ≤3.0 | 2.0 | ≤5.0 | | Soluble residue | 0.19 | ≤1.5 | 0.75 | — |
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