In all the clinker samples, as expected, C3A is present in both the cubic and orthorhombic forms.
The variation in C3A percentage ranges between 1.43-6.14 percent with an exception of 14.52 percent in clinkers CK2 and CK3, and C4AF percentages are in the range 10.02-18.08 per cent, respectively.
The chemical composition of clinker samples was determined by XRF and is given in Table 2.