Concrete
Concrete strength classes and their design values.
Normal-strength concrete
Classes up to C50/60 under Eurocode 2.
| Grade | Standard | Characteristic cylinder strength | Modulus of elasticity | Evidence |
|---|---|---|---|---|
| C30/37 The most common structural concrete class: 30 MPa cylinder, 37 MPa cube characteristic strength. |  EN 1992-1-1:2004 | 30 MPa2 | 33 000 MPa1 |
|
Planned groups
- High-strength concrete (C55/67 and above)
- ACI 318 / US strength classes
