Concrete Mix ratio of Different grades of Concrete at least till M20 grade of concrete
| Concrete Grade | Mix Ratio |
| M5 | 1:5:10 |
| M7.5 | 1:4:8 |
| M10 | 1:3:6 |
| M15 | 1:2:4 |
| M20 | 1:1.5:3 |
| M25 | 1:1:2 |
| M30, M35, M40, M45, M50, M55, M60, M65 & M70 | Design Mix |
Slump value of Concrete
| Concrete Mixes | Slump range in mm |
| Columns, Retaining Walls | 75-150mm |
| Beams & Slabs | 50-100mm |
| CC Pavements | 20-30mm |
| Decks of bridge | 30-75mm |
| Vibrated Concrete | 12-25mm |
| Huge Mass Constructions | 25-50mm |
M45 Grade Concrete Girder slum