Dear Dr.Clarke,
I am sending you mineralogical ,chemical and physical characterization data of white cement.The said plant is using CaF2 as a mineralizer and using 100% petcoke fired kiln.We seek your help to know the possible causes and remedial measures of improving setting time of the cement-1.The analysed data are as given below:
| Parameters | Cement-1 | Cement-2 | ||
| C3S | 53.1 | 63.6 | ||
| C2S | 40.56 | 28.94 | ||
| C4AF | 1.49 | 0.65 | ||
| C3A ( C ) | 0.83 | 2.63 | ||
| C3A ( O ) | 0.15 | 0.34 | ||
| C11A7.CaF2 , Calcium aluminum oxide fluoride |
Relatively more | Relatively less | ||
| Periclase | 0.62 | 0.4 | ||
| Arcanite | 0.48 | 1.17 | ||
| Gypsum |
|
1.38 | ||
| HemiHydrate, | 0.59 | 0.7 | ||
| Anhydrite | 0.07 | 0.13 | ||
| Reactivity of cement by XRD hydration study | Relatively less | Relatively more | ||
| Blaine , m2/Kg | 411.00 | 416.00 | ||
| Fluoride,By ISE-Fluoride | 0.35 | 0.22 | ||
| Setting Time: | ||||
| IST , in minutes | 50 | 100 | ||
| FST , in minutes | 105 | 160 |