Recent content by bubs88

That's all-great info, I appreciate your response. This cold weather concrete science is pretty interesting. Many different factors contribute, and many different opinions.

So for the critical days after the pour the concrete continues to cure and strengthen in cold temps very slowly correct? Does it speed up with increased ambient temp? We are moving into a period of heavy rain with temps in 50s .. I’m wondering if I should take tarps off or keep them on

Thanks for the reply, From what I’ve gathered the freezing issue is only in the first 24 hours approximately or until the concrete reaches 500psi ..I understand curing time slows down the colder it gets. Are you saying ppl tarp/heat their concrete for a month after the pour? I can see why that...

Thanks, I definitely made it through the first 24 hour without freezing

Thanks I’ll do that

Checked under the tarps with heat gun the surface of concrete was reading 40f .. the curb was closer to 32 because it was left exposed .. these are surface temps.. internally it should be higher

Ok, .. what does it look like if it freezes before it gets to 500psi? Can visual inspection tell?

Ok, so what would happen if concrete did get below 30f in the first few days? Does it fall apart when a load is on it? or just not as strong as it should be?

Thanks for reply, definitely cut er close!

Pouring: 24x24 4inch thick with 6inch curb Concrete mix: 4000psi + Hot Water + Calcium (2bags) Poured at 8am with ambient temperature 37f Power trowel off slab by 8pm. ambient temp dropped to 32f Concrete guy said it will be fine without tarps(wasnt impressed). I came home around 9pm and...

are you saying the concrete can drop into freezing temps and then start curing again when it warms up?