How many bags of concrete do I need for 3/4 yard | how many 80lb, 60lb, 50lb and 40lb bags of concrete do I need for 3/4 yard.
Concrete ready mix made of blended mix of Portland cement, sand gravel and other approved ingredient, generally, dry ready mix concrete are available in different bag size and weight condition like 40lb bag, 50lb, 60lb bag, 80lb bag 90lb bag and etc
Weight of Ready mix concrete in dry condition is about 133 lbs per cubic foot, 3600 lbs per cubic yard, or 2136 kg per cubic meter. The weight of concrete is determined by its density, which can vary based on the amount of aggregate, water, and air in the mix.
In United States, based on Imperial measurement system, 1 cubic yard is unit of measurement of volume represented by 3 feet long by 3 feet wide by 3 feet depth (3’×3’×3′ = 27 cubic feet), so 1 cubic yard is equal to 27 cubic feet, so three quarter (3/4) cubic yard = 27 × 0.75 = 20.25 cubic feet.
You can determine yields of one bag of concrete in cubic feet by dividing the weight of one bag of concrete by 133 (weight of 1 cubic foot of concrete) such as 80 lb bags yields = 80÷133 = 0.60 cubic feet, 60 lb bags yields = 60÷133 = 0.45 cubic feet, 50 lb bags yields = 50÷133 = 0.375 cubic feet and 40 lb bags yields = 40÷133 = 0.45 cubic feet.
You can determine easily number of bags of concrete needed for three quarter (3/4) yard of concrete by dividing the 20.25 cubic foot by yields of one bag of concrete such as No. of concrete bags = 20.25 ÷ yields of one bag in cubic feet. In this article you know about how many bags of concrete do I need for 3/4 yard.
How many bags of concrete do I need for 3/4 yard
The number of bags you need will vary depending on the type of concrete mix you choose for your project and weight and yields of one bag of concrete.
As per general rules and guidelines, for making three quarter (3/4) yard, generally you will need 34 bags of 80 lb concrete or 45 bags of 60 lb or 68 bags of 40 lb concrete. As three quarter yard = 27 ×0.75 = 20.25 cubic feet, number of bags calculated by dividing 3/4 yard or 20.25 cu ft by one bag yields, so 1) No. of 80 lb bags = 20.25 ÷ 0.60 = 34 bags, 2) No. of 60 lb bags = 20.25 ÷ 0.45 = 45 bags and 3) No. of 40 lb bags = 20.25 ÷ 0.30 = 68 bags.
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How many 80 lb bags of concrete do I need for 3/4 yard
One 80lbs bag of concrete mix will yield approximately 0.60 cu ft. So it will take 34 bags to equal three quarter (3/4) cubic yard of concrete. Maths calculation, 3/4 cubic yard = 27×0.75 = 20.25 cu ft, No. of 80 lb bags = 20.25÷ 0.60 = 34 bags, thus you will need 34 bags of 80 lb concrete mix to make 3/4 yard of concrete.
How many 60 lb bags of concrete do I need for 3/4 yard
One 60lbs bag of concrete mix will yield approximately 0.45 cu ft. So it will take 45 bags to equal three quarter (3/4) cubic yard of concrete. Maths calculation, 3/4 cubic yard = 27×0.75 = 20.25 cu ft, No. of 60 lb bags = 20.25÷ 0.45 = 45 bags, thus you will need 45 bags of 60 lb concrete mix to make 3/4 yard of concrete.
How many 40 lb bags of concrete do I need for 3/4 yard
One 40lbs bag of concrete mix will yield approximately 0.30 cu ft. So it will take 68 bags to equal three quarter (3/4) cubic yard of concrete. Maths calculation, 3/4 cubic yard = 27×0.75 = 20.25 cu ft, No. of 40 lb bags = 20.25 ÷ 0.30 = 68 bags, thus you will need 68 bags of 40 lb concrete mix to make 3/4 yard of concrete.
How many 50 lb bags of concrete do I need for 3/4 yard
One 50lbs bag of concrete mix will yield approximately 0.375 cu ft. So it will take 54 bags to equal three quarter (3/4) cubic yard of concrete. Maths calculation, 3/4 cubic yard = 27×0.75 = 20.25 cu ft, No. of 50 lb bags = 20.25÷ 0.375 = 54 bags, thus you will need 54 bags of 50 lb concrete mix to make 3/4 yard of concrete.
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Conclusions:-
For making 3/4 (three quarter yard), generally you will need 34 bags of 80 lb concrete or 45 bags of 60 lb concrete or 68 bags of 40 lb concrete or 54 bags of 50 lb concrete mix. There’s 20.25 cubic feet of concrete in 3/4 yard.
