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State whether the following is true or false.
A water-reducing admixture can be used either to raise strength or to improve workability.

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

Answer: C

Keeping the water constant gives a more workable mix, while keeping the workability constant allows less water and a higher strength. Which benefit is taken is a decision for the mix designer. The admixture provides the option rather than dictating the outcome.

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