| ρa | Absolute density in kg/m3 |
| ρap | Apparente density in kg/m3 |
| ρrd | Real density after oven drying |
| ρrsd | Real density saturated dry surface |
| A | Flattening coefficient |
| Ab | Water absorption coefficient |
| Abs | Hardened concrete water absoption Coefficient |
| D | diameter of the cylinder in mm |
| Dmax | Maximum diameter of the aggregates in mm |
| F or P | value of the breaking load (in N); |
| Fc | Compressive strength in MPa |
| Fc28 | Compresssive characteristic strength at 28 days of age in MPa |
| Ft | Tensile strength in MPa |
| Ft28 | Tensile characteristic strength at 28 days of age in MPa |
| Gf (D) | Aggregate coefficient |
| σc | Cement strength class in MPa |
| L | length of the cylinder in mm |
| M | Mass of specimen in kg |
| V | Volume of specimen in m3 |
| P% | Surface cleanliness of coarse aggregates |
| r | radius of the specimen (in mm). |
| S | section of the specimen (in mm2) |