The correct proportions of the composition of concrete.

The strength and durability of any building or product where concrete is used depends largely on the quality of the mixture.

And good quality here is possible only due to two points:

1. If the materials used for the preparation of the mass, durable and have all the necessary certificates.
2. If the mixture is prepared correctly - that is, all the rules, the ratio of components and technological recommendations are observed.

In this article we will examine in detail what the composition + proportions of 1 m3 of concrete should be and how to knead it properly with your own hands.

All we consider specific examples. Let's start.

Cooking claydite

A few words about this mixture.

Состоит из sand, water, цемента и керамзита.

Expanded clay is a very light stone, which is porous in its structure and due to this quality, the cement mass is obtained with good thermal insulation characteristics. Well, since expanded clay has a low weight, it is easy and quick to work with the mixture in which it is a filler.

From the minuses, such moments as the high price of the material (and therefore the mixture as a whole) and not very high compressive strength can be distinguished.

Expanded clay is used mainly for such purposes:

1. For floors in residential areas;
2. For the device of a floor in attics and in penthouses;
3. To fill the walls.

As you can see, the scope of application is quite wide, which means that the mixture is often used in private construction. Accordingly, it is very desirable to know the composition and proportions of claydite-concrete.

Please note that this material is not recommended for casting floors and for the manufacture of products that require high bearing capacity. In such situations, you need the most durable concrete, and it can be obtained only on the basis of rubble.

We proceed to specific instructions.

Preparation of expanded clay for pouring floors and monolithic walls

This mixture is used for the device of the floor and walls is very important, because now there is a tendency to heat saving, and this concrete is much warmer than the rubble.

Therefore, even despite the fact that the price of a cube of concrete of this type is high, it is used more and more often.

To fill the subfloor and walls, as a rule, such proportions of the components are made - 1: 3: 8 (1 - cement, 3 - sand, 8 - expanded clay).

Please note that it is better to use the washed sand, in which there are no pieces of clay, soil or plant roots. The presence of such organics creates the prerequisites for the appearance of voids in the future. The fact is that all this organic matter will rot very quickly and in its place a void will be formed accordingly.

Что же касается water, то тут невозможна какая-либо конкретная и универсальная инструкция по ее количеству в бетоне. Просто напросто потому, что неизвестно какой уровень влажности будет у применяемого вами песка.

But in general, try to follow one simple rule:

The mixture should be really well mixed and rather plastic. When exposed to a trowel or a rule, there should be no cracks and, as it were, “torn” fragments on the concrete surface. If they are, it means that the mass is not enough moisture.

And the other extreme is that it is impossible to work with a too liquid mixture; otherwise, all the components will settle during drying, and water will remain on the surface. Here it turns out that during pouring you will think that the plane is flat, and when everything is dry and the water evaporates, you will see that this is not at all the case.

If to speak by comparisons, the ideal blend should be a bit thicker than fresh honey.

Now let's talk about the standard concrete.

Preparation of concrete on the basis of crushed stone

Concrete based on crushed stone has excellent strength, but at the same time it has a lot of weight.

Used mainly for such purposes:

1. For the production of various concrete products;
2. For the manufacture of foundations and ceilings;
3. For the device footings and blind area;
4. For casting monolithic load-bearing walls, etc.

The easiest way to express the optimal proportions for the preparation of such concrete using the table:

As you have already noticed, the composition and proportions of concrete m400, 300 and below are given in kilograms, but here you should not get lost. Everything is really simple.

When preparing the mixture, everything will be fairly easy to determine, assuming that there is usually 50 kg in the bag of cement, about 40 kg in the bag of rubble, and about 3 kilograms of sand fit in one shovel.

Having remembered these simple figures, you can easily determine the composition and proportions of concrete m300 per 1m3 and any other.

Now a few words about foam concrete.

Proportions of components in foam concrete

Foam concrete belongs to the class of cellular materials and is different:

• porous structure;
• low weight;
• excellent thermal insulation qualities.

As a rule, the material is used for the manufacture of blocks, of which walls and partitions are then built.

Distinctive feature: the mass hardens in natural conditions, which allows to prepare such concretes in private construction. You just need to make a simple form for casting blocks.

Let's talk about proportions and composition - foam concrete is made from:

• cement,
• sand,
• water,
• frother.

The ratio of components should be approximately the same as indicated in the table below.

Please note that all data are based on 1 m. Cubic concrete.

That's all - our review is over.

Let's summarize.

Conclusion

We have dealt with in detail what components of the proportions of concrete are divided and what should be the correct ratio of components. We hope that you will be able to apply all this information in practice and will be able to mix really strong concrete.

If you want to know even more information on this topic, we strongly recommend that you view the additional video in this article.