Clinker specification
Item Data Tolerance Typical Results
CaO 63.0-65.5% 64.86%
SiO2 20.0-23.0% 21.61%
Al2O3 4.0-5.5% 4.72%
Fe2O3 2.0-3.5% 3.02%
MgO 3.3-4.5% 3.48%
SO3 1.0% 0.54%
Loss of Ignition 1.5% 0.18%
f-CaO 1.5% 0.96%
Insoluble residue 0.75% 0.30%
(Na2O+0.65K2O) 0.60% 0.52%
C3S 50-65% 59.20%
C2S 14-25% 17.28%
C3A 6.0-9.5% 7.39%
C4AF 7.0-11% 9.18%
Setting time
Initial 126Mins. 70-130Mins.
Final 168 Mins. 130-210 Mins.
Compressive strength
3days 25-33 MPa 29.4MPa
28days 50-63 MPa 57.6 MPa
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