Journal of Construction Engineering / 2016 / Article / Tab 1

Research Article

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.

PropertyASTM type I/IIRaw clay

Physical
Fineness (m2/kg)401.7
Specific gravity3.13
Chemical
SiO2 (%)20.4959.70
Al2O3 (%)4.2625.53
Fe2O3 (%)3.145.22
CaO (%)63.480.16
MgO (%)2.111.37
SO3 (%)2.90.07
Na2O + K2O (%)0.492.41
LOI (%)2.24.50
Mineralogical
C3S (%)56
C2S (%)15
C3A (%)6
C4AF (%)9

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