|Home|Technical - Quality
Paragon has a NAMAS accredited laboratory and issues monthly test certificates to all clients. In addition, it offers technical back up for all clients and can provide samples for testing.
White Cement
Paragon's Superwhite CIMSA Cement satisfies
the requirements for strength class 52.5N in BS EN 197 - 1:2000.
Grey Cement
Aalborg Portland and Holcim, Lagerdorf Cements satisfy the composition, specifications and conformity criteria in BS EN 197 - 1:2000 for strength class 52.5N.
The mechanical, physical and chemical requirements for the above products
are outlined in the following tables:
Strength class |
Compressive strength MPa |
Initial Setting Time min |
Sound-ness
Expansion mm |
|||
Early strength |
Standard
strength |
|||||
2 days |
7 days |
28 days |
||||
52.5 N |
>= 20.0 |
n/a |
>= 52.5 |
n/a |
>= 45 |
<=10 |
| BS EN 197-1:2000 Chemical
requirements (% by mass of final cement) |
| Loss on ignition | <= 5.0% |
| Insoluble residue | <= 5.0% |
| Sulphate content (as SO3) | <= 4.0% |
| Chloride content | <= 0.1% |
