According to EN 197-1
| Chemical requirements | Physical requirements | Mechanical requirements |
|---|---|---|
| loss on ignition ≤ 5,0 % | initial setting time ≥ 60 min | early compressive strength (2 days) ≥ 10,0 MPa |
| insoluble residue ≤ 5,0 % | heat of hydration ≤ 270 J/g | standard compressive strength (28 days) ≥ 42,5 MPa and ≤ 62,5 MPa |
| sulfates (as SO3) ≤ 3,5 % | soundness (expansion) ≤ 10 mm | |
| chlorides ≤ 0,10 % |
* per il CEM III/B 42,5 N – LH/SR prodotto a Ragusa limite per cloruri ≤ 0,20 %.