Chemical Composition Of Rice Husk Ash

Chemical Composition Of Rice Husk Ash

Chemical composition Rice husk ash Cement type Fly ash
SiO2 (%) 93.0 20.2 42.1
Al2O3 (%) 0.17 5.40 21.0
Fe2O3 (%) 0.35 2.90 7.12
SiO2 + Al2O3 + Fe2O3 (%) 93.5 28.5 70.2
SO3 (%) 0.11 2.30 0.70
CaO (%) 0.91 63.8 14.8
MgO (%) 0.42 1.50 2.00
Na2O (%) 0.63 2.72 0–2
K2O (%) 2.82 0.30 0–5
LOI 4.70 2.00 7.31

rice husk ash

 

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