| Designation | Composition (wt.%) | CaCO3 (wt.%) |
| S1 | Sria (30%) + Ep (70%) | 0 |
| S2 | Sria (30%) + CF (5%) + Ep (65%) | 0 |
| S3 | Sria (30%) + CF (5%) + Ep (63.5%) | 1.5 |
| S4 | Sria (30%) + CF (5%) + Ep (62%) | 3 |
| S5 | Sria (30%)+ CF (5%) + Ep (60.5%) | 4.5 |