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You need to specify the slab's width and the length as well.
11.852 cubic yards
How deep? Are you talking about dry mix weight or finished weight? Concrete weighs 150 pounds per cubic foot. So if you have a 6" slab, that's 150# for 2 square feet. For a 4" slab, the same amount will cover 3 square feet. For a 3" slab, 4 square feet. Concrete mix is commonly sold in 80 pound bags. The finished weight is the mix plus the water that gets chemically bound to it. There's a guide on the bag telling how many bags you need for a given area and thickness.
4.074 cubic yards for every foot the slab is thick.
You can't express a volume of concrete in yards.
129
18 bags (80 pounds) of quikrete for a 4 inch thick slab.
20
3.95 cubic yards of cement are needed for a slab that size.
1.19 Cubic Yards
25 Yards of concrete
You need to specify the slab's width and the length as well.
You need to specify the slab's width and the length as well.
8 square yards
You will need 27.6 cubic yards of cement.
You will need 3.1 cubic yards or 139 80lb bags. This assumes a waste of about 5% which is typical.
100 TONS