From all the replies, clearly the heating requirements are necessary and not optional in cold-weather. However, moisture retention is not as clear-cut.
The low-temperature heating approach proposed by Enable might work as a form of moisture retention. This could arguably count as “other...
Thanks for your detailed response Enable!
I realize my initial post wasn’t clear enough. My main concern isn’t about temperature control but rather moisture retention. Both CSA A23.1 and ACI 308 specify that curing isn’t just about temperature but also maintaining moisture conditions.
ACI 308...
Both ACI 306 and 306.1 don’t address methods for ensuring proper curing while allowing work to continue on top of the slab during this period. I'm all for good concrete curing, but I also want to go beyond theory and understand the actual industry practices that balance durability with...
They typically use Lok-Tests for formwork removal and cylinder breaks later. Concrete strength has been over 75% of f’c at removal, around 95% at 7 days, and exceeding 100% at 28 days, so strength gain is not an issue.
As for shoring and reshoring, the general contractor is checking this and...
Hi everyone,
I'm currently working on a high-rise concrete residential tower in Canada, and I'd like to hear your insights on flat slab curing in cold weather.
The structure is being built through the winter at higher floors (20+), and we've noticed that the slabs aren’t receiving any curing...
