According to EN 197-1
Chemical requirements | Physical requirements | Mechanical requirements |
---|---|---|
sulfates (as SO3) ≤ 3,0 % | initial setting time ≥ 75 min | early compressive strength (7 days) ≥ 16,0 MPa |
chlorides ≤ 0,10 % | soundness (expansion) ≤ 10 mm | standard compressive strength (28 days) ≥ 32,5 MPa and ≤ 52,5 MPa |
pozzolanicity: satisfies the test at 8 days | heat of hydration ≤ 270 J/g | |
tricalcium aluminate (C3A) in clinker ≤ 9 % |