Pouring concrete floor same time as other areas?

[OptionalStop]

My new shop is going to have a 6' lean-to porch, 6' x 10' apron in front of the garage door, and a 10' x 16' shed floor behind the building. This may be the concrete guys preference, but wondering if I should pour everything the same day, or the inside floor one day and the other 3 additional areas another day. The shed and lean-to will be separated by my grade board that I'm using for a form for the inside AND perimeter insulation since I'm doing radiant heat. On the apron in front of the garage door, I'm wondering if I should get this poured at the same time so they are tied in - with my perimeter insulation being about 1" below the top of the floor so it's not to be seen. Thoughts?

 

[sennister]

I will leave others to comment on the pour on the same day but I wanted to mention one thing.

I am doing radiant heat for my garage build this spring. I was planning on doing the heated apron. Well something like the first 5' out from the doors lets say. They are pouring 1700sq feet in front of the garage as I am having the asphalt driveway cut and the "apron" extend from the garage across where the existing asphalt driveway is today. Without drawing it out we will come up the existing driveway and make a 90 deg turn to the new garage or go straight to the back yard where the other garages are and pole barn.

Anyhow I was talking with a buddy that is an engineer and he mentioned heating the first 5' or so is fine but wherever you stop the heat on that slab, expect ice to form. That makes sense because if it snows, that will melt where heated and as it runs down the apron hit the unheated spot and freeze. So that turned into heating all 1700sqft which I decided was too much. I am fine with plowing so we are not heating to prevent this build up.

On a side note I verified what he said this winter. The car wash I am a regular at has a heated apron that covers the 10' at the entrance and exit. Even at that entrance they had a good 4" of ice built up. Never really paid attention to it before. Might get away with heating the apron if you have a drain or some way to channel that snow melt away.

 

[brownbagg]

we do it all the time

 

[Slowgsr]

Why have the trucks and finishers out on multiple occasions? Pour pour pour

 

[ConCretin]

The only concerns are isolation of differential movement and the practicality of removing formwork.

If different sections have the possibility of moving independently i.e heated vs unheated space, etc., you'll want an isolation joint of some kind to prevent an ugly crack (btw all cracks are ugly) You also want to be able to remove all your formwork. If a monolithic placement will bury forms, it might not be the best option.

If you can manage these issues, you can probably save some money with a single pour.