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The burnability of a raw mix describes

  • A.how readily it forms clinker at a given temperature
  • B.how easily the finished cement can be ground at the mill
  • C.how much water the raw meal will absorb from the air
  • D.how quickly the finished concrete will set out on site

Answer: A

Correct answer: how readily it forms clinker at a given temperature

Burnability depends on the fineness of the meal, the mineralogy of the coarse particles, and the chemical moduli, and it is measured by burning a sample and determining the free lime remaining. A poorly burnable mix needs a hotter kiln and more fuel to reach the same free lime.

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