We are pouring 3 ft concrete footings 2 feet deep so 3'x3'x2'deep footings
I was wondering the dry time would be approximately before we can put load bearing posts on the footing
This is for opening a load bearing wall to the kitchen
any ideas as to when the footings should have aout 3000psi strength?
Depends on what grade of concrete you used but a good rule of thumb is to keep it wet for 7 days before loading.
Minimum is usually 7 days to get most of its strength, 28 days is considered fully cured even though it will cure for much longer. Keep it wet.
In 1970 when I was at the Panama Canal, which was built before 1910, they told me the locks were still curing and still getting harder, but they was already hard enough that when ships hit it, the ship got dented. They were kept wet up to the water level.
best to ask the local building inspector. ultimately he must sign off on your project
ted posted for all of us...
Answers in-line
Why so wide and not very deep? Did you get a plan for this? Any rebar? 18 cu feet will = .67 cu yd. Means hand mixing. Ready mix trucks usually have a minimum so you have any more to pour?
7 days and make sure to cure it properly.Ok, you got permits?
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