To calculate the amount of Quikrete needed for a slab measuring 5 feet by 8 feet, you first determine the volume in cubic feet. Assuming a standard thickness of 4 inches (0.33 feet), the volume would be 5 ft x 8 ft x 0.33 ft = 13.2 cubic feet. Quikrete typically comes in 60 lb or 80 lb bags, with each 60 lb bag covering about 0.45 cubic feet and each 80 lb bag covering about 0.6 cubic feet. You would need approximately 30 bags of 60 lb Quikrete or about 22 bags of 80 lb Quikrete to complete the slab.
9x12 feet at 4 inches deep: 1.3 cubic yards.
To calculate the number of 80-pound bags of Quikrete needed, first determine the volume of the slab in cubic feet. The volume of a slab that is 4 inches deep, 4 feet wide, and 7 feet long is 4/12 (0.33 feet) x 4 feet x 7 feet = approximately 9.33 cubic feet. Quikrete typically covers about 0.6 cubic feet per 80-pound bag, so you would need about 16 bags (9.33 cubic feet ÷ 0.6 cubic feet per bag = 15.55 bags, rounded up to 16).
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.
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.
The scheduled date for the slab pour on the construction site is next Monday.
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.