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  GREY PORTLAND CEMENT FOR CONSTRUCTION GRADE 42. 5 according to British standards BS12 / 96 or ASTM C-150.
  Chemical Composition Silicon Dioxide (SIO2) 21. 00
  Aluminium Oxide (AL203) 05. 30
  Ferric Oxide (FE203) 03. 30
  Calcium Oxide (CAO) 65. 60
  Magnesium Oxide (MGO) 01. 10
  Sulfur Oxide (SO3) 02. 70
  Loss Of Ignition (LOI) 00. 90
  M Tricalcium Silicate (C3S) 60. 00
  Dicalcium Silicate (C2S) 15. 00
  Tricalcium Aluminate (C3A) 8. 05
  Tricalcium Alumino Ferric (C4AF) 9. 76
  Physical and Mechanical Properties Blain CM2 / GR 3. 250
  Autoclave Expansion 0. 02
  Initial Setting Time (VICAT) 105 Minutes
  Final Setting Time (VICAT) 135 Minutes
  Compressive Strength
  03 days-230 KG / CM2
  07 days-305 KG / CM2
  28 days-420KG / CM2