24 x 40 x 12in = 24ft x 40ft x 1ft =
Volume = 24 * 40 * 1 = 960ft³ = 9.865yd³
I would guess about 70-80 bales
I think you mean 6 inches thick, not 6 feet thick. You would need 200 cubic feet, or 7.4 cubic yards.
A yard of concrete is a cubic yard and cannot be converted directly to square feet of coverage. You must first determine the depth or thickness that the concrete will be. For instance, since 1 cubic yard equals 27 cubic feet, a 1 foot thick layer of concrete will cover 9 square yards of area. A 4 inch (1/3 foot) thick layer would cover 27 square feet of area.
In order to calculate the area coverage of 60 lbs and 2 inches thick, more information would be needed.Ê The information needed is what the 60 pounds is.ÊÊ To calculate area, you multiply width times height.
Our area is 250 ft2 so 250 ft3 would cover the area with cement a foot deep. We only need 3 inches (1/4 of a foot) so we divide 250ft3 by 4 to get our answer: 62.5 cubic feet.However, the question asks for "yards of concrete" so we need to convert cubic feet into cubic yards as follows:One cubic yard = 3ft x 3ft x 3ft = 27 ft3Dividing our cubic foot answer of 62.5 by 27 we get our answer in cubic yards:62.5/27 =2.3148148 yd3 (the 148 repeats)
1 cubic yard covers 324 square feet per inch of thickness, divide 324 by thickness in inches to get coverage, i.e. 4 inches thick would cover 324/4=81 square feet, 36 inches thick would cover (you guessed it) 9 square feet.
8.25 cubic yards of concrete
Depends on how thick it is. At 4 inches thick, you would nee about 5.5 cubic yards adjusting for safety. At 6 inches, you'd need about 8 cubic yards. You can play with different thicknesses with the linked concrete pad calculator.
It depends on the thickness and the density. One ton should be about 15 cubic feet when compacted, so it would cover 30 square feet 6 inches thick or 45 square feet 4 inches thick or 60 square feet 3 inches thick. It would make a driveway four inches thick, 9 feet wide and 5 feet long or a footpath 3 inches thick, three feet wide and 20 feet long.
(10x16)/3 =53.3 cu ft 53.3/27=2 cu yards
30.81 cubic yards
20 feet x 20 ft x .3333 ft = 133.33 cubic feet / 27 cubic feet per yard = 4.94 cubic yards
That depends on how DEEP you want the concrete !
151/9 cubic yards for every 12 inches thick
An 80lb bag of concrete you can at your local home improvement store covers about 4 square foot at 2" thick. So you would need about 144 bags of 80lb concrete.
If you made a sidewalk about 2.5' wide it would be about 13' long.
I would guess about 70-80 bales