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9.3 cubic yards of cement is required for this slab.
3.70 yards and you will order 4 yards to have enough. (30 x 10 x 1/3) = 100 cubic feet Divided by 27 = 3.704 cubic yards
Assuming a thickness of four inches and allowing about 5% waste, you would need 9.33 cubic yards or about 419 80lb bags.
40 x 40 x 1/2 = 800 cubic feet. Divide 800 by 27 (27 cubic feet per yard) = approximately 29.6 yards.. round that up to 30 cubic yards of concrete.
If the units are 30 ft x 30 ft x 4 inches, then you have 30 x 30 x 0.33 ft = 300 cubic feet300 cubic ft/27 cu yds/cu ft = 11.1 cubic yards
9.3 cubic yards of cement is required for this slab.
11.852 cubic yards
3.70 yards and you will order 4 yards to have enough. (30 x 10 x 1/3) = 100 cubic feet Divided by 27 = 3.704 cubic yards
Assuming a thickness of four inches and allowing about 5% waste, you would need 9.33 cubic yards or about 419 80lb bags.
40 x 40 x 1/2 = 800 cubic feet. Divide 800 by 27 (27 cubic feet per yard) = approximately 29.6 yards.. round that up to 30 cubic yards of concrete.
If the units are 30 ft x 30 ft x 4 inches, then you have 30 x 30 x 0.33 ft = 300 cubic feet300 cubic ft/27 cu yds/cu ft = 11.1 cubic yards
About 3.
30' x 20' (600 square feet) = 66.6 square yards.
10-ft x 30-ft x 4-in = 100 cubic ft.That slab weighs 3.7 times as much as 1 "yard" of concrete. (rounded)
2.15
This depends on the slab thickness required in your area. A six-inch slab would give this calculation: 13.3 yd x 20 yd x 1/6 yd = about 45 cubic yards. Single story residences on stable compacted ground are allowed to be as thin as 4 inches in many areas, which would require only 30 cubic yards.
1 cubic yard = 27 cubic ft3 inches = 0.25 footThe volume of the slab is (30 x 40 x 0.25) = 300 cubic ft= (300 / 27) = [ 11 and 1/9th ] cubic yards = 11.111 (rounded, repeating)