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Q: Which of the following is NOT the role expected by fine aggregate in concrete?
  • A. Fill the voids between coarse aggregates
  • B. Improve workability of concrete
  • C. React with cement to form calcium silicate hydrate gel
  • D. Make the concretes stiff and dense
Correct Answer: Option C - Role of fine aggregate in concrete- (i) Fill the voids between coarse aggregates. (ii) Improve workability of concrete. (iii) Make the concrete stiff and dense.
C. Role of fine aggregate in concrete- (i) Fill the voids between coarse aggregates. (ii) Improve workability of concrete. (iii) Make the concrete stiff and dense.

Explanations:

Role of fine aggregate in concrete- (i) Fill the voids between coarse aggregates. (ii) Improve workability of concrete. (iii) Make the concrete stiff and dense.