At our Karlstadt plant, we offer our blast furnace cement CEM III/B 42.5 N-LH/SR in bulk. Effective January 1, 2023, this cement will be designated CEM III/B 42.5 L-LH/SR.

Reason for the name change:

Statistical analysis methods are used as part of the internal and external monitoring in accordance with DIN EN 196-1. This has shown that, after 2 days, the cement is close to the lower limit of the “42.5 N” compressive strength class, which is ≥ 10 MPa. To avoid having to modify the cement, we have classified it in the “42.5 L” class as a precaution, according to which the compressive strength after 7 days must be ≥ 16 MPa.

The composition, properties, and proven quality remain unaffected by these changes. The characteristic properties and the resulting compressive strengths of the concrete produced using this mixture also remain unchanged.

You can find the updated technical documents on our website.

If you have any questions, SCHWENK Construction Consulting will be happy to assist you.