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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.
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.
A cubic foot is 12" thick 12" wide and 12" deep. .45 cubic feet per 60# bag of concrete
10 bags. Each 80 lb bag is 0.6 cubic feet, and your hole is 6 cubic feet.
Usually concrete mix comes in 40, 60 or 80 pound 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.
An 80 pound bag of premix concrete will make .6 cubic feet of cured concrete. There are 27 cubic feet in a cubic meter, so it would take 45 80 pound bags to make one cubic meter.
1.6 cubic feet = 1sack of barite .6 cubic feet = 1 sack (100 pounds ) bentonite
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.
Quikrete is sold in 60 pound bags, therefore we will need 1.5 bags. Each 60 pound bag produces 0.45 cubic feet, so times 1.5; 90# bag will yield 0.675 cubic feet .
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 cubic foot is 12" thick 12" wide and 12" deep. .45 cubic feet per 60# bag of concrete
10 bags. Each 80 lb bag is 0.6 cubic feet, and your hole is 6 cubic feet.
Usually concrete mix comes in 40, 60 or 80 pound bags.
Each 60 pounds bag of ready mix concrete will make .45 cubic foot of concrete. There are 27 cubic feet in a cubic yard. You will need 60 bags of 60 pound premixed concrete to make 1 cubic yard.
10 bags will give you 6'2/3", seven bags will give you 11 bags will give you 7'1/3". Each bag is 2/3 cu feet.
60 pound of concrete bag makes 1/2 cubic foot of concrete