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Faunsdale, AL | X2 on the poured walls. The only thing good about the stacked concrete units is you can move them later if your plans change. Our shed has posts along the sides, so we are locked into the spacing of the posts for the width of the bays.
We formed curbs with 2x8's and pop-ties where we wanted our poured walls and placed the rebars up through the curb forms from the floor on each side and poured the curbs first with very stiff concrete before adjusting the mix and pouring the floors. We formed a sort of "key" into the top of the concrete curb so there would be a good bond. It would make a stronger wall if you could pour the walls first and then as soon as they were filled, come back and pour the floors so you wouldn't have a cold bond anywhere.
After we stripped the curbs and let the floors cure, we formed up 4' walls with plywood forms, 8" pop-ties and wedges. We placed 5' of 2" pipe 1' into the concrete every 4' along the wall so we could use the 2x lumber and plywood from the forms to make the finished divider 8' tall. The resulting wall isn't as strong as an all concrete wall of course , but will prevent you from spilling loose material over into the next bay and can even be filled to the top with light material that doesn't flow like whole cottonseed, soy hulls, ground hay etc. Have to be careful with something like corn or somebody packing cottonseed in with the loader.
We backed the concrete truck into the bays and were able to put concrete directly into the wall forms. The other way you might want to consider before you go hire a pumper is to deliver it in a skid steer loader. It would take a while, but as long as you don't hit the form and knock them off plumb, you're good to go. I'm sure placing it without a pumper isn't the proper way to do it, but we are pleased with our walls after close to 15 years now. We have popped a few of the 2" pipes loose from the concrete by packing commodities against the wall too high, but for the most part they have worked really well. I was not looking forward to forming and pouring an 8' high wall.
You will have some expense in purchasing all the lumber for forms, but with this system, you re-use most of it to extend the height of the walls.
Second picture shows a section that has been hit with wheel loader, it would never have had any feed pressure against it out in the front of that bay. We have a small wheel loader, but it's plenty big enough to destroy the shed if someone's careless.
Edited by ccjersey 3/11/2012 21:26
 (Commodity shed. grinder and pasteurizer 001.jpg)
 (Commodity shed. grinder and pasteurizer 002.jpg)
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 Commodity shed. grinder and pasteurizer 001.jpg (45KB - 1041 downloads)
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2x2x6 concrete block ideas
