Page 14 - CONCRETE MATERIALS AND MIXTURE
P. 14
1.1.1.2 Properties of cement in
concrete mixture
The chemical composition in cement
2. The composition of different kind of portland cement
Sl. Compound Formula Abbreviation Range
No.
1 Dicalcium silicate 2(CaO)SiO C S 21 to 45%
2
2
2 Tricalcium silicate 3(CaO)SiO C S 25 to 50%
2
3
3 Tricalcium Aluminate 3(CaO)Al O C A 5 to 11%
3
2
3
4 Tetra Calcium 4(CaO)Al O C AF 9 to 14%
4
2
3
Aluminum Ferrite Fe O
2
3
