We decided to make a trip to the build site on 9/16/2014 and just happened to be there on the day the footings were being poured. It's nothing terribly exciting, but I'm surprised the ground was firm enough for the cement trucks to get back there.
Here you can see the pad for the elevator already poured. It's in the process of being screed level.
The blue is the foam that will act as a form/frost control for the frost free footings. There will also be horizontal foam buried on the exterior of the walls to help retain heat and prevent frost from getting too deep into the ground and getting to the concrete.
The cement truck is sitting on excavated earth, so it's not hard packed down. They just used the chute to direct where the concrete would go, and as it flowed, they would lift up the rebar sitting in the trench so that it was suspended in the concrete.
The plywood served as a divider between the two heights of the footings; below grade and at grade. The rebar is tied between the two elevations.
Here's how they lifted the rebar as the concrete flowed. There's not enough weight or spring tension to the metal to press back down after the concrete has flowed under it.
After the concrete has hardened, the came back and "spiked" the footings. That involves inserting vertical rebar where the walls of the ICF forms would be. It ties in the footings to the concrete inside the ICF.
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