When it comes to construction, calculations are indispensable. You need to know how and what you can save on. And not everyone likes spending long hours with a calculator. But in order to do without unpleasant surprises, you still have to get down to the calculations.
As an example, I propose to take the most common concrete M200 and cement M400 in the amount of 50 kilograms.
For the production of concrete M200, it is necessary to take components in the following proportions: 1 part of cement, 4.7 parts of crushed stone, 2.7 parts of sand and water is half the amount of cement. It should also be borne in mind that a cubic meter of our concrete has a mass of 2300 kilograms.
To make calculations, let's conditionally assume that 50 kilograms of cement is 1 part. This means that you can count the number of other components used.
Crushed stone mass: 4.7 * 50 it turns out 235 kilograms;
Sand mass: 135 kilograms;
Weight of water: 25 kilograms.
Then we summarize the obtained figures to obtain the total mass of concrete, which can be prepared from 50 kilograms of cement.
Total weight: 445 kilograms.
Then it is necessary to translate the resulting kilograms into cubic meters. It is these values that are used in construction. So, we multiply 445 kilograms by 1 cubic meter and divide by the mass of concrete M200:
445 * 1m3 / 2300 = 0.193 m3
Using the method of simple calculations, we obtained the required result. It can be concluded that one 50-kilogram bag of M400 cement is enough to prepare 0.193 cubic meters of M200 concrete.
Using a similar scheme, you can easily calculate how much concrete of other brands will turn out if you take one bag of cement.
Naturally, before starting construction, you should take into account a lot of other factors, including the mass of the future structure, conditions, in which the building will be used, etc. All this will affect the specific amount of ingredients used for cooking. cement.
Do not forget that the amount of cement in any calculation is a constant value. Only the proportions of the other main components change.
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