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StructuralEng
StructuralEng, Consultant
Category: Structural Engineering
Satisfied Customers: 7076
Experience:  Structural Engineer
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I am about to install a 2500 gallon cylindrical water

Customer Question

I am about to install a 2500 gallon cylindrical water storage tank with 95" diameter. I would like to have it sit on a concrete slab. How thick should the slab be, and should I use regular rebar to reinforce it.
The ground the slab is sitting on is mostly lime stone with exception of 5" of top soil.
Submitted: 11 months ago.
Category: Structural Engineering
Expert:  StructuralEng replied 11 months ago.
Hello
Expert:  StructuralEng replied 11 months ago.
I can help
Expert:  StructuralEng replied 11 months ago.
Do you need the slab to be larger than the cylinder? 10' square, for example?
Customer: replied 11 months ago.
Expert:  StructuralEng replied 11 months ago.

How large does the entire slab need to be and will there be anything else placed on it?

Customer: replied 11 months ago.
is good. Only thing on slab will be the 2500 gallon water tank. So when full total weight is going to be a 21,000 lbs. including the weight of the tank that is 300 lbs.
Expert:  StructuralEng replied 11 months ago.

Will this be indoors or outdoors? If outdoors, what region of the country are you in? Will frost heave adversely impact the use?

Customer: replied 11 months ago.
Outdoors. We are located in Wimberley Texas which is central Texas. Wimberley is located between Sustin and San Antonio
Expert:  StructuralEng replied 11 months ago.

Great. I would make this a 12" thick pad for the 10' diameter circle. You can use regular rebar, but epoxy coated would be recommended due to the exterior application.

I would also remove the 5" of topsoil and place this on soil that is better suited for bearing such a heavy load.

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