Chemistry

Portland Cement Class F Fly Ash
portland_closeup flyash_closeup
21.95% SILICA 52.8%
5.1 ALUMINA 22.3
63.8 LIME trace
2.4 IRON 9.2
2.4 SULFUR 0.7
2.7 MAGNESIUM 0.2
0.5 AVAILABLE ALKALIES 0.5
1.2 LOSS ON IGNITION 3.2
3.15 SPECIFIC GRAVITY 2.25