Colemanite 50
EPK 14
Silica 34
Magnesium carbonate 2
Total 100
Bentonite 1
Na2O 0.00 Al2O3 0.20 SiO2 2.55
K2O 0.00 B2O3 1.36 P2O5 0.00
MgO 0.09 TiO2 0.00
CaO 0.91 Fe2O3 0.00
Alumina:Silica ratio is 1.00:12.76
Neutral:Acid ratio is 1.00:1.64
Alk:Neut:Acid ratio is 1.00:1.56:2.55
Expansion: 53.9 x 10e-7 per degree C
Oxides causing abnormal expansion: B2O3
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