| Substitution rate of pozzolan (%) | Compressive strengh (Mpa) | ||||||||
| 7 days | 28 days | 90 days | |||||||
| PCB | PCC | PCN | PCB | PCC | PCN | PCB | PCC | PCN | |
| 0 | 52.02 | 52.02 | 52.02 | 65.05 | 65.05 | 65.05 | 67.02 | 67.02 | 67.02 |
| 10 | 49.8 | 50.1 | 47.8 | 59.03 | 63.2 | 57.06 | 62.94 | 66.03 | 59.8 |
| 15 | 48.09 | 49.5 | 44.9 | 56.94 | 58.5 | 52.43 | 58.96 | 62.83 | 56.06 |
| 25 | 39.05 | 43.6 | 37.05 | 53.34 | 54.3 | 48.49 | 55.69 | 60.4 | 53.34 |
| 35 | 36.6 | 40.5 | 35.08 | 44.59 | 50.96 | 42.6 | 50.15 | 52.3 | 46.31 |