Ideal cement
for ready-mixed
concrete production

Cement CEM II/B-M (S-LL) 42,5N usage

The quality of cements is
supervised by the TSÚS (Building
Testing and Research
Institute), Bratislava.
CEMMAC is a holder of an
ISO 9001: 2008 quality
management certificate
and an ISO 14001: 2004
environmental management
Redukované emisie CO2
The content of tricalcium
aluminate in this cement is less
than 5%.

CEM II/B-M (S-LL) 42,5 N
Portland-composite cement

Universal cement for all concrete works that require high end strengths with normal run-up and higher load capacity of the structure. Ideal cement for the production of ready-mixed concrete. The lower development of heat of hydration predetermines it also for concreting in warm weather.


CEM II/B-M (S-LL) 42.5 N is a cement made by finely grinding Portland clinker, gypsum and limestone with blast furnace granulated slag (21-35% according to EN 197-1). It achieves a 2-day strength in the range from 19 to 23 MPa and a normalized 28-day strength of 48 to 53 MPa.


  • concrete of even higher strength classes
  • monolithic and massive concrete structures
  • sprayed concrete
  • concrete products
  • underlying concrete and cement screeds


  • very good workability and volume stability
  • very good pumpability of concrete
  • moderately rapid increase in strength
  • moderately high hydration heat
  • high end strengths

Essential Properties Harmonized Standard
STN EN 197-1
CEM II/B-M (S-LL) 42,5 N
2-day compressive strength (MPa) =< 10 19 – 23
28-day compressive strength (MPa) => 42,5 =< 62,5 48 – 53
Initial setting time (min) => 60 200 – 250
Volume stability (expansion) Le-Chatelier (mm) =< 10 0,0 – 1,5
SO3 sulphate content (%) =< 3,5 2,6-2,9
Chloride content (%) =< 0,10 0,05-0,09

Cement CEM II/B-M (S-LL) 42,5N usage