Machine-translated by Google. Questions are authored in English.
Top

Discussion

A corrective material is added to a raw mix in order to

  • A.colour the finished cement so as to meet a particular customer's requirement
  • B.replace the gypsum that would otherwise have to be interground with the clinker
  • C.adjust an oxide that the main materials do not supply in the right proportion
  • D.reduce the temperature at which the kiln has to be operated throughout the burn

Answer: C

Sand, iron ore or bauxite are added in small quantities to bring silica, iron or alumina to the target figure. The quantities involved are usually only a few per cent, but they matter because the moduli governing burnability are sensitive to them.

No comment is present. Be the first to comment.
Loading…

Post your comment

Please log in or register to post a comment.