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tricalcium silicate

3CaO.SiO2; dissociates at approx. 1,900 degrees C to form CaO and 2CaO.SiO2. This compound is the principal cementing constitutent of Portland cement, small quantities of MgO and Al2O3usually being present in solid solution. Tricalcium silicate is also present in stabilized dolomite refractories.

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