How do I find the Load factor for concrete. I have a 10,000 lb tank to set on it. How thick should the concret

Question

I need to know what thicknesses concrete should be for the weight.

Answer 1

You have to use the correct Pressure Per Square Inch rated concrete.(3,000, 3,500, 4,000, and so on)
the concrete supplier employs an Engineer who will tell you exactly, and draw you a print of how to install the rebar,what size, and so on, and he'll do it for free !!

Answer 2

Like the other answers, this one will not answer the question directly, but here is why: A precise answer depends on several different variables. One is the 'footprint' of the tank. In other words, what is the square footage of the tank? Will you be using rebar? Regardless of the usage of rebar or not, it will also depend on your substrate. What kind of concrete will you be using? and what kind of ground will be supporting the substrate? (rocky ground or clay or dirt?)
Here's something to think about. I just looked up the weight of a F-350 superduty supercab pickup. They are 6400 lbs unloaded. Nobody worries about cracking a driveway when driving a big pickup, and if they show up somewhere with a fully loaded bed, they still don't crack driveways.
Most driveways are going to be high strength concrete 6-8 inches thick. Given that your tank weight will be distributed more evenly than wheels on that truck, even though it's a 4k pounds more, I would guess that a similarly constructed slab (as a good driveway) would do the job. Evening out the base and mashing it down and putting sand and gravel underneath it is very important in making sure a slab doesn't crack and break. Also, you need to make sure that you don't have water eroding away the underside and creating pockets where there is no support, so it would be a good idea to put a good footing around it. I'm guessing you already know this part though, and are just looking for a set thickness.
Unfortunately the answer is much more complex than that. I'm an engineer, and your question intrigued me. I don't work in concrete, but I thought I could come up with a quick answer, but I didn't and I dug around in my books and on the internet for 30 minutes or so.
Lacking a good precise answer, I'd still be willing to bet my lunch money that if you use an 8" slab of high strength concrete with rebar and a good base under it, that you would be ok. If you are paranoid, and the slab is not too huge, you might spring for the extra concrete and extra work and make it 10" thick.
It might be some dramatic overkill, but the extra concrete is still probably cheaper than hiring a structural engineer.

Answer 3

adding steel rebar to the concrete will help alot. we poured a slab in front of a milk house that a milk truck will drive over. we poured 6 inches thick with a rebar grid 2 foot on center. that would be plenty strong for a 10000 lb tank.

Answer 4

All concrete is not equal, you need to ask at the concrete facility.

Answer 5

listen to jenny s. except go 1 foot on center. and make it a monolithic pour. thats when the edges are deeper than the middle.