Maturity of Concrete
Trending Questions
Q. The concrete sample is cured at 15 degree Celsius for 28 days. If the origin temperature is taken as (-11) degree Celsius, what is the maturity (degree Celsius days) of the concrete sample?
- 112
- 307
- 402
- 728
Q. The strength of a fully matured concrete sample is 500 kg/cm2. When cured at an average temperature of 20∘C in day, 10∘C in night, datum temperature T0, is −11∘C. If Plowman constants A is 32 and B is 54, the strength of identical concrete at 7 days will be nearly :
- 333 kg/cm2
- 312 kg/cm2
- 272 kg/cm2
- 243 kg/cm2