Table 2 Chemical composition of cement.
From: Strength and Durability Properties of Concrete with Starch Admixture
Oxides | Oxides composition |
|---|---|
Chemical tests | (%) |
SiO2 | 20.0 |
Al2O3 | 4.60 |
Fe2O3 | 1.68 |
Mn2O3 | 0.90 |
TiO2 | 0.27 |
CaO | 59.9 |
MgO | 4.50 |
P2O5 | 0.13 |
SO3 | 2.61 |
Cl | 0.004 |
K2O | 0.65 |
Na2O | 0.18 |
LOI | 3.89 |
Total | 99.3 |
Insoluble residue | 1.11 |
Compounds calculated from Bogue’s equation | |
C3S | 53.59 |
C2S | 16.91 |
C3A | 9.35 |
C4AF | 5.11 |