Concrete countertop cure times (how long to wait before placing the oven....)

[tewksjj]

Quick question to those who have placed their ovens on concrete. I poured a 3.5" slab, connected to a thinner slab for BBQ and counter, and I am curious on how long folks waited before putting their oven on the slab. The 3.5" slab will take close to a month to fully cure, but of course you could walk on it now if I had poured it ground level. The Giardino 70 I am putting on it is about 500 lbs, and it will rest largely directly over the CMU base, so not a lot of load on the concrete that is not supported by the base. I would love to place the oven on top this weekend, 5-7 days after pouring, but I also do not want cracks.... any thoughts?

[Petter]

https://www.quora.com/What-is-the-minimum-curing-time-for-cement-concrete

https://www.cement.org/learn/concrete-technology/concrete-construction/curing-in-construction

give it at least 7 days.

[tewksjj]

Thanks! Will do!

[Petter]

Nice counter by the way! Mine is going to be almost identical. Working on the slab mold for the moment...

[tewksjj]

Thanks! I feel like I need to do another one to get better at the process, but it is coming together well.

[Petter]

How are you going finish the surface? Mine has been curing for 2 week now. Will remove the mold beginning of next week. I plan to grind a mm or two and then wet-polish. Then concrete sealer followed by an oil.