Portland-composite cement CEM II/B-M (S-LL) 42.5 N (az)

Key features

  • moderate early strength
  • normal final strength
  • normal heat of hydration
  • good post cure
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CEM II/B-M (S-LL) 42.5 N (az) is a Portland limestone cement according to DIN EN 197-1 and is produced from Portland cement clinker, limestone and solidification regulator.

CEM II/B-M (S-LL) 42.5 N (az) is primarily used for the production of concrete, reinforced concrete and prestressed concrete according to DIN EN 206-1 in conjunction with 1045-2. Bored piles according to DIN EN 1536. The recommended compressive strength classes are up to C30/37. Liquid-tight concrete (FD concrete) according to DAfStb guidelines.

  • long open times and low hydration heat development facilitate concreting, e.g. of floor slabs in summer
  • suitable as all-season cement with normal early strength development
  • suitable as cement for problematic aggregates with low fines content

CEM II/B-M (S-LL) 42.5 N (az) is delivered loose in silo trains.


Technical contact

Alexander Paatsch

Application consulting

thomas zement GmbH
Straße der Einheit 25
06638 Karsdorf
T +49 (344) 617 4525
E Alexander.Paatsch@thomas-gruppe.de


Marion Ziegler

Internal sales team cement

thomas zement GmbH
Straße der Einheit 25
06638 Karsdorf
T +49 (34461) 745 13
E Marion.Ziegler@thomas-gruppe.de

Additional contacts