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javadog javadog is online now
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Join Date: Apr 2005
Location: outta here
Posts: 54,945
I would just pour a rectangle, not an H shape. I would put #4 rebar in it on 12 inch centers, both ways, top and bottom. I would dowel the top mat into the existing slab with #4 bar on all four sides. I'd make the bottom level. I'd pour 4000HE and make sure the slump wasn't too high, nor would I allow water to be added to the load. I'd make sure it was vibrated into place. I'd make jigs and embed proper anchor bolts into the pour for the lift bases.

JR

Last edited by javadog; 09-22-2014 at 05:03 AM..
Old 09-22-2014, 05:00 AM
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