Curing of Concrete
Trending Questions
Q. Relative humidity is :
- The relative mass of water vapour per unit volume of space
- The mass of water vapour per unit mass of moist air
- The percentage ratio of the amount of moisture in a given space to the amount which that volume could contain if it were saturated
- The humidity at which air becomes saturated cooled under constant pressure and with constant water vapour content
Q. The primary purpose of curing is to
- Reduce the heat loss of concrete that is freshly placed to the atmosphere
- Reduce the temperature gradient across the cross-section of the concrete
- Both (a) and (b)
- Neither (a) nor (b)
Q. For concrete exposed to dry conditions, the minimum curing period is:
- 5 days
- 7 days
- 10 days
- 14 days
Q. In normal circumstances where ambient temperature does not fall below 15∘C, for a properly cured reinforced concrete slabs spanning up to 4.5 metre span cast using ordinary portland cement, the props provided can be removed only after a minimum period of
- 3 days
- 7 days
- 14 days
- 21 days
Q. According to Indian Standard specifications, the concrete should be cured under a humidity of:
- 30
- 50
- 60
- 90