for ready-mixed
concrete production
Quality
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
certificate.
The content of tricalcium
aluminate in this cement is less
than 5%.
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.
Characteristics
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.
Usage
- concrete of even higher strength classes
- monolithic and massive concrete structures
- sprayed concrete
- concrete products
- underlying concrete and cement screeds
Advantages
- 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 |
CEMMAC 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 |
| Documents for download |
| Technical sheet Cement CEM II/B-M (S-LL) 42,5N |
| Radionuclides |
| Safety Data Sheet |