(2) Physical meaning: KH represents the ratio of the total CaO content in cement clinker after deducting the calcium oxide required by saturated acid oxides (such as Al2O3 and Fe2O3), the remaining calcium oxide content combined with silica to the calcium oxide content required for the theoretical synthesis of tricalcium silicate. In short, the lime saturation coefficient indicates the degree to which silica in clinker is saturated by calcium oxide into tricalcium silicate.
(3) Mathematical expression:
Theoretical value: KH = (CaO-1.65Al2O3-.35Fe2O3)/2.8SiO2
Actual value: KH = [(Cao-Fe2O3)-(1.65Al2O3+.35Fe2O3+.7SO3)]/
f- CaO and f-SiO _ 2 are the mass percentages of free calcium oxide and silica in clinker, respectively.
it can also be expressed by lime saturation coefficient of Li and Parker:
LSF = Cao/(2.8 SiO2+1.18 Al2O3+.65 Fe2O3)
or hydraulic rate:
HM=CaO/(SiO2+Al2O3+Fe2O3).