90 sq yds at 4" thick.
Depends on how thick the concrete pad is. At 4 inches thick and allowing for a little waste and imprecise measurements, about 350 square feet. You can check out more options with the concrete calculator below.
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.
about 5 yards if your slab is 4" deep
Well, you make a sidewalk from concrete, not just cement. Concrete consists of cement, sand, gravel and water. You will need 5.5 cubic feet of concrete. A standard sidewalk grade of concrete would be 1 part cement, 2 parts sand, 3 parts gravel- so the sidewalk needs 0.91 cu ft of cement- about 87 pounds worth- plus sand and gravel. If you want to buy the premixed bags of concrete (like Sacrete), you will need about 17 of the 40 pounds bags. And you did not ask, but 3 inches is kind of skinny- I would go for at least a 4 inch thick sidewalk.
5,000,000 barrels of cement were used to make the 4,300,000 cubic yards of concrete required.
Depends on how thick the concrete pad is. At 4 inches thick and allowing for a little waste and imprecise measurements, about 350 square feet. You can check out more options with the concrete calculator below.
16 x 16. Actually if you do the math, you could do a 18 x 18, but you never get 4 yards and you rarely get a form that is a perfect .33 feet.
approx. 74 yards Sorry, Dabar, but I think you have not accounted for the conversion of cu. feet to cubic yards...my calculations are as follows...... 40 X 17 is equal to 680 cubic FEET of area. You take the 680 and divide by 27 to get the cu. YARDS of concrete. (25.1 cu. yds) Then because you only want the slab 4 inches thick, you multiply by .33 (or 8.25 cu. yards of concrete) Then you allow 10 % for waste or shortage....(make this about a yard...so, 8.25 and one for waste/shortage is equal to 9.25 cu. yards of Concrete for this project)
The best way to approach this problem is to make all of these units consistent. Since you want your result to be in cubic yards, let's make all the linear dimensions yards as well. So since 1 yard = 3 feet = 36 inches, you have 60 ft/3 = 20 yards by 80 ft/3 = 26.667 (approx) yards by 5 in/36 = .13889 (approx) yards. Now multiply your constants together: 20 * 26.667 * .13889 = approximately 74 cubic yards of concrete.
I make it 12.2 cubic yards.
108 inches = 3 yards.
900 inches = 25 Yards
Every 12 inches make 1 foot,and every 36 inches make 1 yardSo640 inches= 640 / 36 yards= 177/9 yards= 17 yards 28 inches= 17 yards 2 feet 4 inches
15X15X.33(4/12 there is 4 inches in a foot therefor 4" is .33 of a foot) equals 74.25 cf of concrete divide by 27 (three demensional object for yards) 2.75 Cubic Yards. if you try to order .75 cubic yards of concrete you will be laughed at, just order 3 cubic yards and make a entrance path. good luck.
6 inches = 1/6 yardVolume = (length) x (width) x (thickness) = (9 x 6.5 x 1/6) = 9.75 cubic yards
It's 54, 60lbs bagsand 40.5 80lbs bags.Check http://www.decks.com/calculators/concrete.aspx Answer54in construction a yard of concrete is not in cubic yards. A yard of concrete (in bulk) cost about $75 (Alabama) and is 4 inchs thick. Most Sidewalks, driveways and platforms are only 4 inch thick.So 1 80lbs back covers a little over 1 square foot at 4 inches thick.
There are 36 inches in a yard 342/42 = 19/2 yards or 9.5 yards