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.
Ideal cement for ready-mixed concrete production
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 20 to 24 MPa and a normalized 28-day strength of 53 to 57 MPa.
| Essential Properties | Harmonized Standard STN EN 197-1 | CEMMAC CEM II/B-M (S-LL) 42,5 N |
|---|---|---|
| 2-day compressive strength (MPa) | 10 ≤ | 20 - 24 |
| 28-day compressive strength (MPa) | 42,5 ≤ 62,5 | 53 - 57 |
| Initial setting time (min) | 60 ≤ | 250 ± 30 |
| Volume stability (expansion) Le-Chatelier (mm) | ≤ 10 | 0,0 – 2,0 |
| SO₃ sulphate content (%) | ≤ 3,5 | 2,5 - 2,9 |
| Chloride content (%) | ≤ 0,10 | 0,06 – 0,09 |
- 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
The quality of cements is supervised by TSÚS Bratislava. CEMMAC holds an ISO 9001:2008 Quality Management certificate and an ISO 14001:2004 Environmental Management certificate.