CountryByNet.com Forums :: Re: Project Barn Q1, depth of the floating concret

How heavy of a truck? Greatest loaded weight? Size of contact patch on the tires. This will translate into concretre thickness. Do you have a sand bed under the insulation? What insulation? Aluminized bubble wrap? It works OK. For my basement floor I used 2 1/4 inch rigid foam in 4x8 sheets. Some of the house is hydronic heat but not basement. The floor just takes on the temp of basement air passively and the room is heated with forced hot air.

I used the aluminized bubble wrap under the master suite (mix of hydronic ceiling, floor, and walls in the various rooms) and in my wood shop (1/2 of 36x48 floor size extension of the house (also forced air.)

3500 PSI or greater concrete will do.

Don't believe anyone telling you fiber in the cement removes need for rebar. You want rebar NOT fence wire looking stuff.

I just did a driveway extension and a patio. Same contractor that did my basement. The patio (no vehicular traffic heavier than a chaise lounge or a propane BBQ) and we used 3500 PSI concrete and 1/2 inch rebar on 24 inch centers in a N-S by E-W grid with over 25 diameter overlap. Rule of thumb in rebar is to overlap it at least 25 times the diameter.

We wet sawed control joints on a 8 ft by 8 ft grid. You can tool in the joints but the wet saw is faster, easier, and therefore cheaper.

Hope some of this helps. Oh by the way, I was going to send pix but it just started raining pretty hard and ...

I hope I followed your rules.

Pat

"I'm not from your planet, monkey boy!"

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