Maximizing Sustainability of Concrete through the Control of Moisture Rise and Drying Shrinkage Using Calcined Clay Pozzolan

Table 1

Chemical compositions of Portland cement and clay.

Property	ASTM type I/II	Raw clay
Physical
Fineness (m^2/kg)	401.7
Specific gravity	3.13
Chemical
SiO2 (%)	20.49	59.70
Al2O3 (%)	4.26	25.53
Fe2O3 (%)	3.14	5.22
CaO (%)	63.48	0.16
MgO (%)	2.11	1.37
SO3 (%)	2.9	0.07
Na2O + K2O (%)	0.49	2.41
LOI (%)	2.2	4.50
Mineralogical
C3S (%)	56
C2S (%)	15
C3A (%)	6
C4AF (%)	9