one yard of cement will make a 8 x 10 square foot slab at 4 inches thick, that's 80 sq. feet per yard of cement at 4 inches thick.
Brute, manual effort. A sledgehammer or jack hammer are the two most common methods for a cement slab or sidewalk. Roadways need much bigger equipment.
A 40x60x6in slab requires 44.44 cubic yards of cement.
Sounds like a broken line under the slab
A 40'x40'x6" slab requires 29.63 cubic yards of cement.
9' by 18' by 4" thick requires at least two cubic yards.
9 metre2
You will need 6.17 cubic yards of cement.
8.64 cubic yards of cement.
It depends on how deep it is. If it is 6 inches deep, you will need 77 yards.
Brute, manual effort. A sledgehammer or jack hammer are the two most common methods for a cement slab or sidewalk. Roadways need much bigger equipment.
If you mean 115 feet by 17 feet by 4 inches thick, you will need a minimum of 24.14 cubic yards.
Assuming that's 30 ft X 30 ft X 6 inches, you will need 20 cubic yards
28 feet by 32 feet by 6 inches thick requires at least 16.59 Cubic Yards.
You will need 27.6 cubic yards of cement.
You will need at least 9.68 cubic yards of cement.
You'll need 1 cubic yard.
1.85 cubic yards.