H.Y.International Supply Ordinary Portland Cement (OPC): Complies with Pakistan Standard PS – 232/1983; British Standard BS –12 – 1996; and American Standard ASTM C-150 Type I in the packaging of 50 Kg P.P Bags, 50 Kg 3 Ply Paper Bags, 1 Metric Ton Jumbo Bags, 2 Metric Ton Sling Bags.
Assured Compliance With
| British Standard |
OPC BS 12-1996
|
| American Standard |
ASTM C-150 Type I |
| European Standard |
OPC EN 197-1 CEM I 42.5 R |
| Pakistan 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 Cement Company.
Chemical Analysis
Parameters |
H.Y.International Cement
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
SOUNDENESS -By using most modern Kiln feeding system, it is ensured that lime entering into the Kiln should be in such a shape that it should totally combine with oxides during the burning process. The result is that the frees lime content is very low and soundness of Cement is less than 1 mm which is far better than 10 mm prescribed by Pakistan Standard PSS 232-1983 ( R) and / or British Standard EN 197 Class 42.5 N.
Fineness |
|
Sieve Residue Over 45µm% |
9-11 |
Fineness by Blaine cm2/g |
3200-3300 |
Setting Behavior
SUPERIOR STRENGTH, OPTIMUM SETTING TIMES AND MINIMUM EXPANSION – These are the three benchmarks adopted by Cement Company which is emerging to be the largest cement plant of Asia and committed to provide the best quality cement to its customers around the globe through stringent quality control and application of most modern quality control techniques.
OPTIMUM SETTING TIME - Optimal initial & final setting times are ensured by adopting special production parameters using most modern control techniques.
| |
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
SUPERIOR STRENGTH -The compressive strength is a very important factor of cement. The Ordinary Portland Cement achieves its maximum strength in 28 days. The Pakistan standard PSS 232-1983 (R) & British Standard EN 197 Class 42.5 N provides for 28 days strength of 5000Psi and 5950 PSI respectively for mortar cubes.
|
Typical Results |
Standard Requirement
EN 197-1 BS 12-1996 |
Early strength – 2days (N/mm2) |
22.5 |
20.0Min for 42.5 R |
Standard Strength – 28days (N/mm2) |
50.0 |
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. OPC is used in all general construction especially in major prestigious projects where cement has to meet stringent quality requirements. It can be used in concrete, mortars and grouts.
Grey OPC Grade 42.5 (Detailed Specifications)
| |
Limits as per Pakistani Standard |
Limits as per
British Standard |
OPC 42.5
Cement Specifications |
Chemical Analysis(%) |
PSS-232 1983(R) |
B.S.12:1978 |
Normal test results (%) |
L.O.I. |
Max: 3.00 |
Max: 4.00 |
1.50% |
I.R |
Max: 1.50 |
Max: 1.50 |
0.4% |
SiO2 |
---- |
---- |
21.20% |
Al2O3 |
---- |
---- |
4.65% |
Fe2O3 |
---- |
---- |
3.90% |
CaO |
---- |
---- |
63.8% |
MgO |
Max: 4.00 |
Max: 4.00 |
1.20% |
SO3 |
Max: 3.00 |
>Max: 3.00 |
1.75% |
L.S.F |
0.66-1.02 |
0.66-1.02 |
0.92% |
Na2O |
---- |
---- |
0.22% |
K2O |
---- |
---- |
0.19% |
Alkali Eq |
---- |
---- |
Not Exceeding 0.60% |
C3S |
---- |
---- |
55.05% |
C2S |
---- |
---- |
22.4% |
C3A |
---- |
---- |
6.30% |
C4AF |
---- |
---- |
10.8% |
Chloride |
---- |
---- |
0.10% |
Physical Analysis
Setting Time |
Initial Setting Time (Minutes) |
Min: 45 |
Min: 45 |
160 |
Finial Setting Time (Minutes) |
Max: 600 |
Max: 600 |
250 |
oundness Expansion |
Max: 10 mm |
Max: 10 mm |
1.0 mm |
Compressive Strength Mortar Cubes
3 DAYS (PSI) |
Min: 2200 |
Min: 3350 |
3350 |
7 DAYS(PSI) |
Min: 3400 |
---- |
4500 |
28 DAYS (PSI) |
Min: 5000 |
Min: 5950 |
6500 |
