QUESTION

We are having a concrete porch installed with bluestone pavers on top. How long should we wait to put on the pavers?

ANSWER

ANSWER -  The general rule is to wait 28 days for the concrete to cure, although that depends on the thickness of the concrete, the temperature and humidity,  and the concrete mix.

If you use a crack isolation membrane or certain flexible thin-set mortars the manufacturer will recommend as little as 14 days curing.