Ordinary Portland Cement
Ordinary Portland Cement is produced by
pulverizing clinker consisting essentially of hydraulic
calcium silicate and containing one or more forms of calcium
sulphate as an inter ground addition.
Assured Compliance With
| European Standard |
OPC EN 197-1 CEM I 42.5 R |
| Pakistani Standard |
PS 232/1983(R) |
Typical Analysis and Physical Properties
The listed tests below are typical and for information
only. Analytical details of the product should be sought
in writing from the Pakistan Cement Company.
Chemical Analysis
| |
Typical Results |
Standard Requirement
EN 197-1 BS 12-1996
|
| Loss on Ignition
% |
2.0 |
5.0% Max |
| Insoluble residue
% |
0.5 |
1.5% Max |
| Sulphate as SO3 % |
2.5 |
3.5% Max |
| Chloride % |
0.05 |
0.1% Max |
| Alkali Equivalent
% |
0.57 |
0.60% Max |
Physical Properties
| Fineness |
Sieve
Residue Over 45µm% |
9-11 |
Fineness by Blaine
cm2/g |
3200-3300 |
Setting Behavior
| |
Typical Results |
Standard Requirement
EN 197-1 BS 12-1996 |
Standard Consistency
% |
27.5 |
|
Initial Setting Time
(minutes) |
150 |
60Min. |
Final Setting Time
(hours) |
4:30 |
10h |
Compressive Strength Performance Mortar EN 196-1
Testing Method
| |
|
Standard Requirement
EN 197-1 BS 12-1996 |
Early strength –
2days (N/mm2)
|
|
|
Standard Strength
– 28days (N/mm2)
|
|
42.5Min. and 62.5 Max for 42.5
R
|
Application
The product has been designed to give enhance concrete
properties in the fresh “wet” state with adequate
high early strength levels upon setting and hardening.
