Quality
The quality of cements is su-
pervised by the TSÚS (Build-
ing Testing and Research
Institute), Bratislava.
CEMMAC is a holder of an
ISO 9001: 2008 quality
management certificate
and an ISO 14001: 2004 en-
vironmental management
certificate.
Portland-slag cement
All-purpose cement for all types of concrete work requiring high final strength and a higher structural load capacity. Ideal cement for the production of ready-mixed concrete. The low development of heat of hydration also predetermines it to concreting in warm weather.
Characteristics
CEM II / B-S 42,5N is a cement produced by fine grinding of Portland clinker, granulated blast-furnace slag (21-35% according to EN 197-1) and gypsum. It attains 2-day strengths ranging from 17 to 24 MPa and standard 28-day strengths of 47 to 55 MPa.
Use
- plain concrete and reinforced concrete even of higher strength classes
- monolithic and massive concrete structures
- concrete structures within water structures
- hard surfaces made of concrete
- concretes and concrete elements exposed to mechanical load
- subconcrete and cement screeds
Advantages
- very good workability and soundness
- very good pumpability of concretes
- low development of heat of hydration
- high final strengths
- moderate resistance to chemical aggression (up to the XA1 environment)
| Essential properties | Harmonized Standard EN 197-1 |
CEMMAC CEM II/B-S 42,5 N |
| 2-day compressive strength (MPa) | => 10 | 17 – 24 |
| 28-day compressive strength (MPa) | => 42,5 =< 62,5 | 47 – 55 |
| Initial setting time (min) | => 60 | 190 +- 30 |
| Volume stability Le-Chatelier (mm) | =< 10 | 0,0 – 1,5 |
| SO3 sulphate content (%) | =< 3,5 | 3,1 +- 0,2 |
| Chloride content (%) | =< 0,10 | 0,05 +- 0,03 |
| The content of tricalcium aluminate in this cement is less than 5% | ||
Increase in strengths CEM II/B-S 42,5N
| Documents for download |
| Technical sheet CEM II B-S 42,5N |