Ciments : CEM II 42.5 N
Definition and Composition
The Ciment » CEM II 42,5 N « , Tunisian standard NT 47-01, and European standard EN 197-1:2000, is an Artificial Portland Cement type I, without additives, resulting from the fine grinding of a mixture of :
- clinker Portland 95% at least
- calcareous Filler 5% at most
- Setting regulator (Gypsum) with appropriate proportion
Characteristics
| Characteristics | Standard | Physical | Standard | Mechanical | Standard |
| % PF | ≤5 | Initial Setting Time with water mn | ≥60 | Compression resistance (MPa) | |
| % RI | ≤5 | soundness (mm) | ≤10 | 7J Mini | 16 |
| % SO3 | ≤3.5 | 28J Mini | 32.5 | ||
| % MgO | ≤5 | 28J Maxi | 52.5 | ||
| % CI | ≤0.10 |
Characteristic: Ciment » Low Alkalis » by its » Alkaline Equivalent » lower than 0.60%.
Quality control
This product was the subject of a serious qualitative control, carried out by a qualified personnel, according to standardized methods and with metrological means calibrated.
Certification
This type of ciment is certified in conformity to the standards by the following certification bodies:
- INNORPI (NT.47-01) Tunisie
- AENOR(UNE-EN 197-1:2000) Espagne
and has obtained CE marking.
Conditioning
- Bag
- Big-bag
- Bulk
Mode of delivery
A triple distribution network :
- Road (Trucks)
- Railroad (wagons)
- Sea (Boats)
Use
This type of ciment offers excellent performances, and allows a diversified use :
- air and hydraulic works out of reinforced concrete with significan constraints and exceptional class
- works in great mass
- strongly requested carrying structures.
- re-fabricated units out of reinforced concrete such as beams and girders
- solid masses and road concrete
- demanding works of high initial strengths.
- prestressed concrete normally reinforced
Contra-indications
The use of this type of cement is not allowed to :
- work in the sea, unless it meets certain conditions.
- work in corrosive conditions (salt water, salt-works,) such as underground and foundations.