The Effect of Additive ZRJ-S1 on Mechanical Properties of Portland Cement

Table 1

Chemical components of class G oil well cement.

Components	Wt%
Magnesia (MgO)	1.42
Sulphur trioxode (SO3)	2.52
Insolubles	0.55
R2O	0.43
C3S	57.33
C3A	2.34
2 C3A + C4AF	18.21
Loss	1.03