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State whether the following is true or false.
A pozzolana has cementing properties on its own without any addition.

  • A.False
  • B.True only at large scales
  • C.False only at small scales
  • D.True

Answer: A

It has little or none by itself but reacts with lime in the presence of water to form cementing compounds. The definition of a pozzolana rests on precisely that dependence. Volcanic ash from Pozzuoli gave the class its name.

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