Discussion
Maturity, as used in concrete practice, combines
Answer: B
Correct answer: temperature and time to estimate strength gain
Maturity treats strength development as a function of both how long the concrete has been curing and how warm it was, since hydration accelerates with temperature. Combining the two into a single index - degree-hours above a datum - allows the in-place strength to be estimated from thermocouples rather than waiting on cubes, which is how formwork striking and post-tensioning times are decided on site.
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