About how many pounds of concrete mix will fill 1 cubic foot when mixed?

Question

I know I can go check the bag at the store but that is not an option for me right now. I need to fill 70 cubic ft total for a footing in the basement.

Answer 1

1 - 60 lb bag of concrete that already has sand and agregate in it wiil almost do 1 - 12"x 12" x 12" or 1 cubic foot -- just a guess i would say at least 70 --- 60 lb bags of ready mix concrete would be very close

Answer 2

If memory serves me concrete is in the range of 150 pounds per cubic foot. If you take out the weight of the water you should get about 1/2 a cubic foot per 60 lb. bag

Answer 3

I have just done a cobble stone patio and 1-80 pound bag of ready mix concrete will do 2 cubic feet when mixed according to the instructions

Answer 4

the 80 lb. bags say they will do 2/3 of a cubic ft. so unless you have 2 or 3 people mixing for you, call a truck. in order to keep from getting a bunch of cold joints you would have to mix fast and furiously from start to finish...

Answer 5

You don't really want to mix that yourself, do you??? It would be faster and cheaper to order two yards of concrete from your local ready mix plant. If the basement is not easily accessible, you may have to wheelbarrow it in, but that will be much easier than mixing two bags at a time.

Do the math. Two yards at $80 / yard, or about 100 bags at $4/bag

At least check into getting it from the ready-mix.

Answer 6

An 80# bag contains 0.60 cubic feet when mixed properly. There is also a calculator on this site.

Answer 7

The dry concrete,sand and aggregate weigh approximately 150 pounds per cubic foot . I would estimate you need 10,500 pounds of the material.