If you are starting a renovation or construction, first of all, you need to calculate the exact amount of materials that you will need. Otherwise, you will constantly have to run to the store for missing materials. Or think of where it would be more profitable to attach the leftovers.
Competent and careful calculations significantly save the overall construction budget. In today's article, we will calculate the amount of concrete that can be obtained from 1 bag of cement (the calculations are valid for the cement grade M400).
For example, you bought a bag of cement weighing 50 kilograms, and you plan to use it to prepare concrete of the M200 brand. Ingredients are required in the following quantities:
- 50 kg of cement - we will take it as 1 part;
- 230 kg of crushed stone, or 4.6 parts;
- 130 kg of sand, or 2.6 parts.
- 25 liters of water, or 0.5 parts.
We will assume that the mass of a cubic meter of concrete is 2300 kilograms. We do not use any complex formulas in our calculations. Enough division and multiplication, which take place in elementary school.
Determine the total weight of the solution. Add up all the obtained values (50 + 230 + 130 + 25). I got the number 435. I think you do too.
It follows that one bag of cement is enough to prepare 435 kg of concrete. Builders usually operate not with mass quantities, but with volumetric ones. We translate our kg into cubic meters.
435 kg * 1m3 / 2300 kg
It turned out 0.189 cubic meters.
I hope you didn't have any problems with the calculations. Everything is as simple and understandable as possible: first we multiply, then we divide. My son, a third-grader, would have done it too.
What do we have?
From one 50-kilogram bag of M400 grade cement, you can get 0.189 m3 of M200 grade concrete.
If you use some other brand of cement, you can operate with the above scheme. All calculations are performed in the same way - you don't need to be smart and invent a bicycle.
You should also take into account some points that make changes to the calculations. These include the mass of the future structure, the conditions in which it will be operated, etc.
Remember that in any calculations appears the same amount of cement (does not change). Other components can be used in other proportions.
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