To get the most out of our concrete column calculator, here are the steps to follow to find that using our calculator: Gravel volume = 4 * cement volume = 4 * 0.286 cu yd ≈ 1.144 cu yd (0.857 m³)Īs briefly discussed above, our concrete column calculator can help you find the volume and weight of concrete needed for your concrete column project. Following the mix ratio, we can calculate the volumes of sand and gravel required, as shown below:Ĭement volume = total concrete volume / sum of termsĬement volume = 2 cu yd / (1 + 2 + 4) = 2 cu yd / 7 ≈ 0.286 cu yd (0.214 m³) By dividing the required volume of 2 cu yd (1.5 m³) by 7, we obtain the cement volume that makes up one part. Adding the terms of our ratio, 1, 2, and 4, together, we get a sum of 7. For example, let's say that we want to use a mix ratio of 1:2:4 for a 2 cu yd (1.5 m³) concrete column. We can do this by dividing the volume by the sum of the terms in the ratio. In the calculator, you will also see the corresponding strengths of the mixes which you can also check in this table: Concrete mix ratioĪfter you have chosen the mix ratio you want to use, you have to calculate the volumes of cement, sand, and aggregate that would make up the required concrete volume. In this concrete column calculator, we have provided some of the most common concrete mix ratios for you to choose from. Concrete mix ratios determine the strength of the resulting concrete. If you prefer to mix your own concrete, you have to know the mix ratio that you want to follow. Account for waste and spillage (usually 5-10%) and voila! Now you know how many bags you truly need.Input the weight of one bag of premixed concrete - again, check the bag.You can also check out how to calculate density in our density calculator. Provide the density of concrete you will use (you will find it on the bag - which is how premix concrete is usually sold).If you chose to purchase premix concrete bags, we can calculate how many concrete bags do we need by following these steps: Now that we know how to calculate concrete volume, we can go ahead and solve the number of bags you need for your project or the amount of each concrete component (cement, sand, and aggregate) we need. Based on this data, our cement calculator will count the overall volume of all of these elements. Determine the number of columns you need.Provide the diameter or cross-sectional dimensions of your concrete column, as well as its height. To figure out how much concrete you need to buy, you simply need to multiply the volume required by the density of the concrete mixture.
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