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How many cu ft are in a yard?
9 cubic feet per per cubic yard
How much cememnt is needed to cover 400 square feet three inches deep?
3 inches = .25 feet400 square feet X .25 feet = 100 cubic feet100 cubic feet / 27 cubic feet per cubic yard = 3.7 yards
How many square feet are in 1 yard of concrete?
A yard of concrete is a measure of volume. A square foot is a measure of area. A cubic yard is 27 cubic feet of stuff. (3x3x3)To relate volume to area you must extend the area over a third dimension. One square foot that is one foot deep will equal one cubic foot. (1x1x1)So, a yard of concrete is 27 cubic feet or 3 feet tall 3 feet wide 3 feet deep. concrete wieghs 150lbs per cubic foot 27cubic feet times 150 pounds is 4050 pounds. This is 1 cubic yard of concrete.
How square yards are in a ton of tarmac?
Well; at about 145 # per cubic foot and 27 cubic feet in a yard; I'd say around 3915 #
How do you convert cubic yards of dry sand to imperial tons?
Start with a conversion factor. An "old timer's" view is that a cubic foot of dry sand weighs about 125 pounds. There are 3 feet in a yard. There are 3 x 3 or 9 square feet in a square yard. There are 3 x 3 x 3 or 27 cubic feet in a cubic yard. As there are 27 cubic feet in a cubic yard and there are 125 pounds to a cubic foot of our dry sand, there are 27 x 125 pounds of dry sand per cubic yard, or 3,375 pounds of dry sand per cubic yard. (Yes, there are that many.) There are 2,240 pounds in an Imperial ton. There are 3,375 divided by 2,240 Imperial tons in a cubic yard of dry sand, or right at 1.5 Imperial tons of dry sand per cubic yard. To convert cubic yards of dry sand to Imperial tons, multiply the number of cubic yards of dry sand by 1.5 and your answer will appear. Every time.
