A concrete mix is a combination of five major elements in various proportions such as cement, coarse aggregates, fine aggregates (i.e. sand), water, and air. There are various grades of concrete used in construction that depend on the purpose of structures. Some concrete mixes are M10, M20, M30, M35, etc. So, what really does M10 or M20 mean or represent.
Ingredients for Concrete Mix
Concrete Mix Ratio Table
Here is the standard chart table showing various grades of concrete mix design along with their respective ratios of cement, sand and aggregates required.
| Grades of Concrete | Ratios of Concrete mix design (Cement:Sand:Aggregate) |
| 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 | 1:0.75:1.5 |
| M35 | 1:0.5:1 |
| M40 | 1:0.25:0.5 |