Single ring of #4? for bottom of footer, only 2 rings for footer total, very inadequate. Didn't do a full grid of rebar for the pad. Stakes driven in the ground, which will promote oxide jacking and premature cracking of the concrete. This is not said to berate you, but for anyone watching this video, look at bin manuals (I engineered my concrete dimensions as well as rebar placement with a combination of the Brock and GSI manuals for my grain bin), DO NOT GO THIS LIGHT! It is WAY under spec. I'm spending close to 5k on concrete for a 21ft. bin, and about 700-800 on rebar. Concrete could be about 2k less if I wasn't trying to go 2ft. above grade, but I don't want an incline auger. With a vise and pipe, you can custom bend cages to hold the footing rebar grid, I went with 3x3 in my application. Use stakes to hold cages in position, install rebar rings to cage, install chairs underneath, pull stakes, install pad rebar. You can't spend 150+/yd and ever have it fail in your lifetime, build it to last.
Thanks for the comment. Actually it exceeds the manufacture's specifications for the application. I agree with you, going extra on concrete is fine, and it's cool that you engineered your own. We used the manual that was provided.
Actually Hydration and not Hydrolysis is the reaction of concrete setting. Nice video!
Single ring of #4? for bottom of footer, only 2 rings for footer total, very inadequate. Didn't do a full grid of rebar for the pad. Stakes driven in the ground, which will promote oxide jacking and premature cracking of the concrete. This is not said to berate you, but for anyone watching this video, look at bin manuals (I engineered my concrete dimensions as well as rebar placement with a combination of the Brock and GSI manuals for my grain bin), DO NOT GO THIS LIGHT! It is WAY under spec. I'm spending close to 5k on concrete for a 21ft. bin, and about 700-800 on rebar. Concrete could be about 2k less if I wasn't trying to go 2ft. above grade, but I don't want an incline auger. With a vise and pipe, you can custom bend cages to hold the footing rebar grid, I went with 3x3 in my application. Use stakes to hold cages in position, install rebar rings to cage, install chairs underneath, pull stakes, install pad rebar. You can't spend 150+/yd and ever have it fail in your lifetime, build it to last.
Thanks for the comment. Actually it exceeds the manufacture's specifications for the application. I agree with you, going extra on concrete is fine, and it's cool that you engineered your own. We used the manual that was provided.