The composition of the concrete for the foundation and

The ability to calculate the composition of concrete for the foundation of 1 cubic will help you use resources more efficiently and make the necessary adjustments in connection with the characteristics of a particular case. Here, the amount of water, sand moisture, cement grade and other equally important indicators can play a significant role. And now about everything in order.

Ingredients and Shading

The foundation must be reliable and durable, able to withstand the entire weight of the building being erected on it. Nothing can do this better than properly mixed concrete.

Component proportions

The composition of the concrete mix for the foundation:

1. Cement is the most important element that binds the filler and forms a strong stone in the process of hardening of concrete.

Совет: рекомендуется использовать цементную смесь качеством не ниже марки M400. Это гарантирует более высокую надёжность основанию вашего дома.

1. Sand. Fills the pores of the basement, reducing its moisture-absorbing properties.

Tip: when using wet sand, dry it or reduce the amount of water added to the solution. Otherwise the mixture may turn out to be too liquid.

1. Gravel. This is the ingredient that is responsible for the strength of the array and can withstand enormous loads. It is because of it that only cutting of reinforced concrete with diamond circles is possible, since other nozzles will simply become worthless due to contact with the stone.

When making a batch with their own hands, the ratio of 1: 3: 5 is usually used, that is, for example, 30 kg of sand and 50 kg of rubble are added to 10 kg of cement. But depending on the type of foundation to be poured and the specific structural features of the building, one or another brand of concrete may be required.

Below is a table with more accurate proportions for different types of batches, which are distinguished not only by strength, but also by price, which is also worth bearing in mind.

And, of course, we must not forget about water. Even more, special attention should be paid to it, since it is she who is the medium in which the cement stone is formed.

If you again resort to the classical approach, then usually the amount of added liquid should be half as much as the dry mix. But a more accurate instruction involves taking into account the brand of cement mix used and the brand of desired concrete. The following table shows the recommended percentage displacement for various combinations:

Tip: Concreting should not be carried out in winter, as water crystallizes at sub-zero temperatures and prevents the mortar from setting completely.

Features of calculation and bookmarks

It is easy to calculate the composition of concrete on a foundation, but its type must always be taken into account:

1. Ribbon. It is a concreting of the bases under the bearing walls and partitions. The most rational and common option for pouring the foundation. The volume of the required solution should be considered for each tape separately. For example, if the trench depth is 1 m, length is 5 m and width is 0.5 m, then 2.5 m is required.³ concrete.

Tip: if we assume the method described above, then the corner areas will be repeated in the calculations. This is normal, in this case it is better to be safe and knead the concrete with some margin.

1. Monolithic. This is a solid reinforced concrete slab, which is usually required in the case of the construction of high-rise buildings. It is much easier to calculate it, since only one mathematical action is required: we multiply the area of ​​the future house by the depth of the foundation. Let it be 50 m in our case.² at 0.5 m, and we get the need for a 25 m³ cement mix.

1. Columnar. Economical option for the construction of a concrete foundation. Depending on the shape of the piles, there are two ways to calculate:

• Parallelepipeds. As in the previous cases, multiply the linear parameters, and then multiply by the number of pillars. That is, 9 structures with a length of 1 m and a thickness of 0.5 m in both directions will require 2.25 m³ concrete mix.
• Cylinders. It will require a different formula in which the square of the pile radius is multiplied by a constant number Pi. Take for example the distance from the center of the pillar to its circumference of 0.25 m, then we will need 0.2 m³ solution on one support.

In the process of concreting should follow some rules:

• If there is a large depth, perform a phased casting with a height of 25 cm, but without long breaks..
• Punch the solution with a metal bar and tamp to prevent air pockets from forming..

Conclusion

The foundation must be reliable and durable. Therefore, it is necessary to approach its pouring with all due responsibility. The most important thing is to correctly observe the proportions of all the ingredients of the concrete solution.

The video in this article will provide you with additional information regarding the materials presented. Be careful when mixing all the necessary components, and ready-made concrete will serve for a long time and efficiently.