2stage foundation pour

[busted knuckles]

I am considering a concrete footing with concrete piers. Is it possible to do the piers after the footing has set? In 2 stages?  The cold joint would have rebar holding it together. Would that work? How about if it was keyed along with the rebar? Footing size is 15x24' , 5 piers per 24' run.

[Redoverfarm]

I am considering a concrete footing with concrete piers. Is it possible to do the piers after the footing has set? In 2 stages?  The cold joint would have rebar holding it together. Would that work? How about if it was keyed along with the rebar? Footing size is 15x24' , 5 piers per 24' run.

Shouldn't be a problem.  I would locate where the piers are going and extend some rebar vertical at that location from within the footing tied to your rebar footing( L shape).  If using sono-tubes make sure they are level and plumb from the footing and rebar enhanced.  Laying block same would apply.  Normally keyways are for wall on top of footings and would not really help in this situation as it would be a very short run.

[busted knuckles]

Good to hear, thank you.