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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.
Cubic feet of concrete required = 32 x 3 x 0.25 = 24 cu. ft 1 cu yd = 27 cu ft Answer: 24/27 cu yards = 0.89 cu yards.
Not square yards, but Approx. 5.24 cubic yards 54'2" = 650" x 7'10" = 94" x 4" = 4" = 244,400 cubic inches / 46,656 cubic inches = 1 cubic yard (36" x 36" x 36")= 5.24 cubic yards
You should calculate the volume of your slab in cubic yards. First get the volume in cubic feet by multiplying your dimensions together (change 4" to 1/3 ft) . This gives; 80 x 13 x (1/3) = 347 cf (rounded off). Next change to cubic yards by dividing by 27 , since 1 cy = 27 cf. This gives; 347/27 = 13 cy (rounded off). When you buy yards of concrete you are really buying cubic yards and the amount you will need for your slab is 13 yards. you also can multiply length x width x depth and change you're inches to decimals for example 4" will be .33 so 80 x 13 x.33=343.2 then you divide 343.2 into 27 and you get 12.7 rounded is 13 if your not sure how to convert your inches get a construction 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.
53 and 1/3 cubic feet, concrete is normally sold buy the cubic yard, this would be 1.975 cubic yards. Figure on 2.25 CU yards to be safe. You do not want to run short when pouring concrete.
You will need a minimum of 2.42 cubic yards of cement.
If you made a sidewalk about 2.5' wide it would be about 13' long.
16 ft * 47 ft * 4 inches =16/3 yards * 47/3 yards * 4/36 yards = 9.3 yards approx.
4.23776 cubic yards
Volume = 12 cubic feet = (12 / 27 ) 0.444 cubic yard
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.
Cubic feet of concrete required = 32 x 3 x 0.25 = 24 cu. ft 1 cu yd = 27 cu ft Answer: 24/27 cu yards = 0.89 cu yards.
That is about 135 cu ft., or 5 yards
each cu.yard of concrete is equal to 4 inches thick X three ft. X three ft. X 9 So 3 ft wide x 3 ft. long is equal to 4 ft wide X 2.25 ft long. Therefore 34 ft long is just over 15 of these 2.25 increments. So since there are 9 increments in a yard, you'd need 1 and 2/3 (1.66) cu.yards. for your sidewalk. Concrete is usually $85+-/yd so you might be able to only purchase $140 worth of concrete and do it with your buddies. It will be the last time they come to your house to help with a project though.
You will need 3.7 cubic yards of cement.
You will need 1.36 cubic yards of cement.