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9x12 feet at 4 inches deep: 1.3 cubic yards.
It depends on the depth required
2.15
This can't be answered because you have not given the third dimension. You must say how thick the slab is.
22 cubic yards
2x2
I would get 12 to be safe.
18 bags (80 pounds) of quikrete for a 4 inch thick slab.
9x12 feet at 4 inches deep: 1.3 cubic yards.
about how much to pour a concrete slaba 12 x 14'
10 cm = 0.1 meterThe volume of the slab is (6 x 8 x 0.1) = 4.8 cubic meters
129
You will need a minimum of 74.1 cubic yards.
If you want a 3" depth, then 4 cubic yards will do it.
Approximately 12.35 Cubic Yards.
If there are no seams in it - it was not poured in sections, but as one continuous pour.
In order to estimate rcc roof slab you must measure the roof and calculate its area. Then you must contact a professional to see how much slab will be needed.