Chemical analysis Results (%) Limit values
Silicon Oxide, % SiO2 19,26
Aluminium Oxide, % Al2O3 4,46
Iron Oxide, % Fe2O3 5,47
Calcium Oxide, % CaO 61,47
Magnesium Oxide, % MgO 1,46
Sulphur Oxide, % SO3 2,58 ≤ 4,0%
Sodium Oxide, % Na2O 0,28
Potassium Oxide, % K2O 0,62
CI 0,0117 ≤ 0,10%
Loss on Ignition % ( L.O.I) 3,19 ≤ 5,0%
Insoluble Residue % (I.R) 0,29
Free Lime 0,95
C3A 2,57 ≤ 5,0%
2C3A+C4AF 21,76 ≤ 25,0%
Physical analysis Results Limit values
Initial Setting Time (minutes) 160 ≥ 60
Final Setting Time (minutes) 255
Soundness/Expansion (mm) 1,0 ≤ 10
Specific Surface Area Blaine (cm2/g) 3358
2 days – Compressive Strength (MPa) 23,2 ≥ 20
7 days – Compressive Strength (MPa) 38,9
28 days – Compressive Strength (MPa) 51,8 ≥ 42,5; ≤ 62,5

A hydraulic cement produced by milling Portland cement clinker containing max 5% tricalcium aluminates together with a given quantity of gypsum.
Produced in compliance with TS 10157 standards.

Typically SDC 32,5 can be used in places where ordinary Portland cement is used. Since it has a C3A ratio less than 5% it is technically much more convenient in the areas that are subjected to higher sulfate rates such as tunnels, dam constructions, port constructions, irrigation channels, building chemicals etc. Fields of use include:

  • Shore and Port Structures
  • Off shore constructions
  • Disposed Water Facilities
  • Foundation, Bored Piles
  • Water Arcs
  • Dams
  • Underground water pipes, of concrete
  • Sulfate contaminated industrial grounds and structures
  • Refineries
  • Tunnel Shoring