On the Byggmax website, it states that I can use the concrete I have cast after just one day. Is it really true that if I cast a small foundation today, I can start laying leca blocks on it by the same time tomorrow?

How do you deal with after-curing, etc.?
 
S
why do you need to water afterwards? a lot of sun shining on?

a warm you can build with but no more I think
 
No, you're right, it's probably not needed now.

How long does the concrete need to cure before I can start laying masonry on it then? I removed the garage doors yesterday, and what I need to cast again are partly the holes after the frames (which were cast into the slab) and partly to fill in a ledge, or whatever it's called. The Lecablock will mostly rest on the existing slab, so the ledge won't bear much weight, I think. So the question is how long this needs to cure before I can start laying masonry.
 
Depends on how warm it is.
If you cast at plus 20, it is strong enough after a day or so in my opinion, but at plus 5, I would probably wait almost a week.
 
You surely won't build so quickly that it would involve any direct loads in concrete contexts.
 
It's just the old opening I'm going to narrow a bit, so it probably won't take long to brick. Then after it has rested for a day, I will start removing a cast arch that the rafters rest on.
 
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