– Bogues Compound & their Function –
| Sr.no. | Bogue’s compound | Formula | Name | Symbol | Function | Percentage |
| 1. | Tricalcium silicate | 3CaO.SiO_2 | Alite | C_3 S | Responsible for early strength | 30-50% |
| 2. | Dicalcium silicate | 2CaO.SiO_2 | Belite | C_2 S | Responsible for ultimate strength | 20-45% |
| 3. | Tricalcium aluminate | 3CaO.〖Al〗_2 O_3 | Celite | C_3 A | Responsible for flash setting | 8-12%
|
| 4. | Tricalcium alumina ferrite | 4CaO.〖 Al〗_2 〖Fe〗_2 O_3 | Felite | C_4 AF | No contribution for strength | 6-10% |
– Decreasing order of Heat of Hydration –
C_3 A>C_3 S>C_4 AF>C_2 S
– Heat of Hydration data:
C_3 A ∶ 865 J/gm
C_3 S ∶ 500 J/gm
C_4 AF ∶ 420 J/gm
C_2 S ∶ 260 J/gm
– Decreasing order of Rate of Hydration –
C_4 AF>C_3 A>C_3 S>C_2 S
