Table 1 The results of the Portland cement analysis
From: Combined Use of Sewage Sludge Ash and Silica Fume in Concrete
Element | Content (%) | Element | Content (%) | Element | Content (%) |
|---|---|---|---|---|---|
SiO2 | 22.7 | Na2O | 0.27 | SO3 | 1.65 |
Al2O3 | 4.8 | K2O | 0.81 | IR | 0.42 |
Fe2O3 | 3.8 | Alkalinity equivalent | 0.8 | C3A | 6 |
CaO | 64.2 | CO2 | 0.0 | C2S | 30 |
MgO | 1.8 | C3S | 47 | L.O.I | 0.7 |
C4AF | 12 | Â | Â | Â | Â |