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Ethridge, TN | I've built 4 bins, and have repaired numerous others, with most of those repairs being caused by skimping being done on the concrete work. You want a real fun job, take a 42' - 9 ring bin and have to put it up on jacks, jack hammer out all the concrete, and redo it all. Why do bin foundations break? Because time wasn't taken to put in the proper foundation under the outside edges of these bins. Wire, don't waste your time, you need rebar if you really intend to keep your bin foundation together. That means digging a footer, size depends on bin size, as well as climate conditions, and also back filling. Then you need upright rods, drove in the ground to hold them in place, and then several rounds of rebar, forming a circle in your footing area, and a 16" to 24" cross hatch across the floor that is tied to that circle. I have yet to have a floor/footing crack that I've installed in this manner. The last I did was a 48', 50,000 bushel, bottom of the footer was 24", tappering up to 4', and was 3' deep. The floor was poured 8" deep, and all tied together with rebar, two rounds, 4 bar runs, and the floor was a 16" cross hatch, 1/2" rebar. If you want a bin foundation to last, you have to build it do that. | |
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How Thick Should Concrete Be Under Grain Bin?
