Table 4: Chemical compositions of cement original materials in certain sampling period [2].

Material typeLoss
(%)
SiO2
(%)
Al2O3
(%)
Fe2O3
(%)
CaO
(%)
MgO
(%)
SO3
(%)
K2O
(%)
Na2O
(%)
Cl
(%)

Limestone40.098.521.231.3146.052.490.020.210.070.0243
Clay7.9962.7417.944.062.400.940.643.250.000.09
Iron24.747.9250.2713.012.940.790.140.190.000.25
Correction30.253.1521.3038.555.171.530.050.000.000.013
Coal ash0.0044.7726.044.498.421.670.950.620.000.043

Assuming the cost and bond power index for the cement material in Table 4 are 24.00 ¥/ton, 25.00 ¥/ton, 50.00 ¥/ton, 30.00 ¥/ton, 28.70 ¥/ton, 12.45 Kwh/ton, 12.10 Kwh/ton, 18.98 Kwh/ton, 14.70 Kwh/ton, and 15.66 Kwh/ton, respectively.