by 
Nominal mix proportions of concrete correspond to approximately to different grades of concrete are given below:
| Grade of Concrete | Nominal Mix Proportions (Cement: Fine Aggregate: Coarse Aggregate) |
| M25 | 1:1:2 |
| M20 | 1:1.5:3 |
| M15 | 1:2:4 |
| M10 | 1:3:6 |
| M7.5 | 1:4:8 |
| M5 | 1:5:10 |
