CEM II – PORTLAND COMPOSITE CEMENT A-M (P-L) 42.5-R
Chemical analysis |
Results (%) |
Limit values |
Silicon Oxide, % SiO2 |
23,14 |
|
Aluminium Oxide, % Al2O3 |
6,48 |
|
Iron Oxide, % Fe2O3 |
3,17 |
|
Calcium Oxide, % CaO |
57,14 |
|
Magnesium Oxide, % MgO |
1,47 |
|
Sulphur Oxide, % SO3 |
2,59 |
Max. 4,0% |
Sodium Oxide, % Na2O |
0,66 |
|
Potassium Oxide, % K2O |
1,13 |
|
CI |
0,0046 |
Max. 0,10% |
Loss on Ignition % ( L.O.I) |
6,13 |
|
Free lime |
0,97 |
|
Total Additive |
18,42 |
12-20% |
Physical analysis |
Results |
Limit values |
Initial Setting Time (minutes) |
170 |
Min. 60 |
Final Setting Time (minutes) |
265 |
|
Soundness/Expansion (mm) |
1,0 |
Max. 10 |
Specific Surface Area Blaine (cm2/g) |
4251 |
|
2 days – Compressive Strength (MPa) |
23,0 |
Min. 20 |
7 days – Compressive Strength (MPa) |
35,8 |
|
28 days – Compressive Strength (MPa) |
50,1 |
42,5 – 62,5 |