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Polymorphism in alite means that

  • A.it can crystallise in more than one crystal form
  • B.it contains more than one chemical element in its formula
  • C.it hydrates at more than one rate at the same time
  • D.it appears in more than one colour under the microscope

Answer: A

Several polymorphs occur depending on temperature and on the minor elements present, and they differ somewhat in reactivity. Stabilising a more reactive form is one route by which minor components influence cement strength.

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