Question

For concrete exposed to dry conditions, the minimum curing period is:

• A. 5 days
• B. 7 days
• C. 10 days
• D. 14 days

Answer 1

The correct option is C 10 days

As per IS 456 : 2000, for any structural concrete member the minimum curing period is 7 days at 90% humidity but if any mineral Admixture is used then it is 10 days.
It is also recommended that the curing duration should not be less than 10 days for concrete exposed to dry and hot conditions and 14 days for concrete with mineral admixture.