Colemanite 45
EPK 10
Kaolin (Calc.) 9
Silica 36
Total 100
Na2O 0.00 Al2O3 0.32 SiO2 3.37
K2O 0.00 B2O3 1.49 P2O5 0.00
MgO 0.00 TiO2 0.00
CaO 0.99 Fe2O3 0.00
Alumina:Silica ratio is 1.00:10.60
Neutral:Acid ratio is 1.00:1.87
Alk:Neut:Acid ratio is 1.00:1.81:3.38
Expansion: 52.7 x 10e-7 per degree C
Oxides causing abnormal expansion: B2O3
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