I talked to Doug

This morning I talked to Doug, the concrete guy. He excavated the site a WHILE back and we've been waiting and waiting for the weather and for me to get the insulation down and Pex tubes in place. Everyone is getting a little antsy and we've finally got a date locked in. This coming Monday AM *Cheers all around!* a big truck with a bunch of concrete is going to come and probably crush my poor thin asphalt driveway but the garage will have its slab!
I am sorry now that I didn't start this blog when I actually started the project. I will give a brief synopsis of where the project is at and then in some future posts I will go back over some of the details and decisions that have been made.
Right now there is an excavated and formed-up site waiting for concrete. We're doing slab-on-grade over frost-wall to save money, but we are insulating the slab and Doug had the bright idea of setting the forms 4" larger than the slab so I can just insulate the whole thing before the pour. (Sounds like a good idea but I'm not sure of the time savings over insulating after the forms come off.) So we have 2" of high-density polysyrene inside the forms. I did put a floor drain in also that will just drain some of the winter slop outside to the back yard. The only thing noteworthy about that is that I did put a P-trap below the drain. My thought was that I didn't want a 3" pipe wide open for the wind to blow it's gnarly self in to cool off our nice warm garage.
Stapled directly to the foam is just under 600 Lin.Ft. of 1/2" oxygen-barrier pex tubing in three separate loops. I'll definitely have a separate post about that seeing as that is one of the key components of the project.  I'll be hooking up a pressure gauge before the pour to ensure the integrity of the loops during the pour. Doug will be installing re-rod in the "grade beam" around the edge and in a grid 4' on center throughout the slab. After he "rods" it I will zip-tie my sensors to the re-rod. (Obviously I have to have separate post/s about the sensors.) Let the pour then commence!
That's where we're at. More soon!
Buenos noches!