CEM II – PORTLAND COMPOSITE CEMENT B-M (P-L) 42.5-N
Chemical analysis |
Results (%) |
Limit values |
Silicon Oxide, % SiO2 |
23,34 |
|
Aluminium Oxide, % Al2O3 |
6,61 |
|
Iron Oxide, % Fe2O3 |
3,16 |
|
Calcium Oxide, % CaO |
55,86 |
|
Magnesium Oxide, % MgO |
1,41 |
|
Sulphur Oxide, % SO3 |
2,55 |
≤ 3,5% |
Sodium Oxide, % Na2O |
0,80 |
|
Potassium Oxide, % K2O |
1,25 |
|
CI |
0,0160 |
≤ 0,10% |
Loss on Ignition % ( L.O.I) |
7,86 |
|
Free lime |
0,87 |
|
Total Additive |
26,84 |
21-35 |
Physical analysis |
Results |
Limit values |
Initial Setting Time (minutes) |
180 |
≥ 60 |
Final Setting Time (minutes) |
275 |
|
Soundness/Expansion (mm) |
1,0 |
≤ 10 |
Specific Surface Area Blaine (cm2/g) |
4321 |
|
2 days – Compressive Strength (MPa) |
18,0 |
≥ 10 |
7 days – Compressive Strength (MPa) |
30,7 |
|
28 days – Compressive Strength (MPa) |
45,9 |
≥ 42,5; ≤ 62,5 |