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Discussion

Pre-homogenisation of crushed limestone in a stockpile serves to

  • A.remove the whole of the iron content from the material
  • B.reduce the stone all the way to its final ground fineness
  • C.even out variation in the chemistry of the quarried stone
  • D.dry the crushed stone thoroughly before it enters the raw mill

Answer: C

Material laid down in long layers and reclaimed across them averages out the variation between one part of the quarry face and another. Steady chemistry entering the mill is what makes steady clinker possible downstream.

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