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