To calculate the amount of concrete mix needed for an 18x20x4 pad, first determine the volume in cubic feet: 18 ft × 20 ft × 4 ft = 1,440 cubic feet. Since a standard 80 lb bag of concrete mix yields about 0.6 cubic feet, you would need approximately 2,400 bags (1,440 ÷ 0.6 = 2,400). Therefore, you'll need around 2,400 bags of 80 lb concrete mix for the project.
Bags of dry powered mix concrete are usually just a couple of bucks each for 80lbs.
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Concrete :- a mix of cement, sand, water, and gravel. Mortar :- a mix of cement, sand, and water
Concrete mix is made from (sharp)sand, cement, aggregate and water. The ratios depent on the usage
The strength of concrete depends on the mix used to make it- ratio of cement, sand, gravel and water. If the mix does not produce a concrete that is strong enough, the concrete will break.
Bags of dry powered mix concrete are usually just a couple of bucks each for 80lbs.
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Ready-mix isn't a company nor a facility, it is a type of concrete which is manufactured in a factory or batching plant. Ready mix concrete is sometimes preferred over other concrete because of the precision of the mixture.
Lean mix concrete is used for substructures like foundations,piles,etc.,Ready mix concrete is used for superstructures and also for mass construction.Generally, quality of ready mix concrete is good when compared to the lean mix concrete.Workability of lean mix concrete is high when compared to RMC.
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.
There is no way to answer that without knowing how deep the concrete will be.
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Concrete mix is made from (sharp)sand, cement, aggregate and water. The ratios depent on the usage
1:2
To mix 1 cubic yard of concrete, you typically need about 5.5 to 6 bags of 94 lb. cement. This is based on a standard concrete mix ratio of 1 part cement, 2 parts sand, and 3 parts gravel. The exact number may vary slightly depending on the specific mix design and desired strength of the concrete.
it takes 45 Bags of 80# mix to make a cubic yard
there are 108 20kg bags of concrete to 1 cu mtr. If your making your own mix using dry mix concrete requiring cement and water, and your making a mix ratio of 5:1, then you divide 108 by 6 = 18. therefore: 18x20kg bags of cement to 1800kgs of dry concrete mix.