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Q: Hardening of cement occurs at ...........
  • A. rapid rate during the first few days and afterwards it continues to increase at a decreased rate
  • B. slow rate during the first few days and afterwards it continues to increase at a rapid rate
  • C. uniform rate throughout its age
  • D. None of these
Correct Answer: Option A - Hardening of cement – (i) Hardening rate during the first few day and afterward if continuous to increase at a decrease rate. (ii) Hardening refers to the gain of strength of a set of cement paste. (iii) The process of hardening of cement continuous for a period more than 1 year.
A. Hardening of cement – (i) Hardening rate during the first few day and afterward if continuous to increase at a decrease rate. (ii) Hardening refers to the gain of strength of a set of cement paste. (iii) The process of hardening of cement continuous for a period more than 1 year.

Explanations:

Hardening of cement – (i) Hardening rate during the first few day and afterward if continuous to increase at a decrease rate. (ii) Hardening refers to the gain of strength of a set of cement paste. (iii) The process of hardening of cement continuous for a period more than 1 year.