0.6 cu yds
0.6 yards is incorrect. According to quikrete's website it would require 46 80# bags of concrete to cover 81 square feet at 4" thick, which is one cubic yard. Dividing 46 by 1 yard gives us approximately 0.022 yards per bag.
A typical 80-pound bag of concrete mix yields about 0.6 cubic feet of concrete. A 3-yard mixer has a capacity of 81 cubic feet (3 cubic yards). To fill the mixer, you would need approximately 135 bags of 80-pound concrete mix, since 81 cubic feet divided by 0.6 cubic feet per bag equals about 135 bags.
An 80-pound bag of premixed cement = .667 cubic feet, or 2/3 of a cubic foot, of concrete. A 60-pound bag of premixed cement = .5 cubic feet, or 1/2 of a cubic foot, of concrete.
Usually concrete mix comes in 40, 60 or 80 pound bags.
1.8 Cubic yards of concrete is 48.6 cubic feet. Each 80lb bag of concrete is .6 cubic feet. Therefore, you would need 81 bags. Hope that helps. GEO
I assumed here that you wanted a wall six inches thick...the answer is "more bags than you want to deal with." Specifically, at least 125 80-pound bags. The formula is: first, determine the volume of the item by multiplying the height (3 feet) by the length (50 feet) by the thickness (0.5 feet). This gives you 75 cubic feet. If the wall's thinner or thicker, of course this is going to change. Next, divide this by the number of cubic feet in a bag-- 0.30 cf per 40 pound bag 0.45 cf per 60 pound bag 0.60 cf per 80 pound bag This gives us our total bags...125 80-pound, 167 60-pound or 250 40-pound. Then add 10 percent more, just in case. This is the time I'd start thinking of other things to make from concrete, so I could order five yards of it. Five yards of premixed concrete will be cheaper than the three yards of bagged concrete you'll need, and you can't mix concrete fast enough to pour something this big.
it takes 45 Bags of 80# mix to make a cubic yard
80 lb bag yields about 0.6 cu ft per Quikrete specs:fNote: the question really refers to concrete not cement.
A typical 80-pound bag of concrete mix yields about 0.6 cubic feet of concrete. A 3-yard mixer has a capacity of 81 cubic feet (3 cubic yards). To fill the mixer, you would need approximately 135 bags of 80-pound concrete mix, since 81 cubic feet divided by 0.6 cubic feet per bag equals about 135 bags.
Typically, one 50-pound bag of concrete is needed per fence post.
An 80-pound bag of sacked concrete typically yields about 0.6 cubic feet of concrete. A standard 12-inch concrete block has a volume of approximately 0.5 cubic feet. Therefore, an 80-pound bag can fill about 1 to 1.2 blocks, depending on the specific dimensions and any extra material needed for mortar or adjustments.
This all depends on the mix you want. I assume you mean cement when you mention the 80lb bag of concrete. I have pushed concrete in my day... Bag cement mix is the same as concrete. Don't be funny. How many 80 pound bags will make 1 yard of concrete? I want a definitive answer this time.
A 60-pound bag of concrete mix typically yields about 0.45 cubic feet of concrete. To convert this to square feet, you need to know the thickness of the slab you plan to pour. For example, if you're pouring a 4-inch thick slab, the 60-pound bag would cover approximately 13.5 square feet.
An 80-pound bag of premixed cement = .667 cubic feet, or 2/3 of a cubic foot, of concrete. A 60-pound bag of premixed cement = .5 cubic feet, or 1/2 of a cubic foot, of concrete.
Usually concrete mix comes in 40, 60 or 80 pound bags.
1.8 Cubic yards of concrete is 48.6 cubic feet. Each 80lb bag of concrete is .6 cubic feet. Therefore, you would need 81 bags. Hope that helps. GEO
I assumed here that you wanted a wall six inches thick...the answer is "more bags than you want to deal with." Specifically, at least 125 80-pound bags. The formula is: first, determine the volume of the item by multiplying the height (3 feet) by the length (50 feet) by the thickness (0.5 feet). This gives you 75 cubic feet. If the wall's thinner or thicker, of course this is going to change. Next, divide this by the number of cubic feet in a bag-- 0.30 cf per 40 pound bag 0.45 cf per 60 pound bag 0.60 cf per 80 pound bag This gives us our total bags...125 80-pound, 167 60-pound or 250 40-pound. Then add 10 percent more, just in case. This is the time I'd start thinking of other things to make from concrete, so I could order five yards of it. Five yards of premixed concrete will be cheaper than the three yards of bagged concrete you'll need, and you can't mix concrete fast enough to pour something this big.
60 pound of concrete bag makes 1/2 cubic foot of concrete