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