For the manufacture of Portland cement, the proportions of raw materials used, are

Civil Engineering Building Materials
Choose an option
  • A
    lime 63% ; silica 22% ; other ingredients 15%
  • B
    lime 22% ; silica 63% ; other ingredients 15%
  • C
    silica 40% ; lime 40% ; other ingredients 20%
  • D
    silica 70% ; lime 20% ; other ingredients 10%.

Answer

Correct Answer: lime 63% ; silica 22% ; other ingredients 15%

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