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The size of the concrete block for the foundation and walls - Blog about repair

The size of the concrete block for the foundation and walls

24-03-2018
Building

Бетон давно используется для производства самых различных изделий и конструкций, и если раньше из данного материала делались в основном железобетонные изделия и заливались фундаментные и монолитные системы, то в наше время он используется гораздо шире. В частной застройке очень популярны бетонные блоки 20х20×40– с ними очень удобно работать своими руками, а в промышленном строительстве очень востребованы блоки ФБС.

Solid concrete blocks 40 to 20 to 20 - ideal for building a foundation in low-rise buildings

Features of concrete blocks

To understand why the products of this group are so popular, it is necessary to consider their main advantages:

  • A wide size range of products, allowing you to choose the optimal configuration for any width of the foundation. Of course, the most popular option is concrete blocks 20 to 20 to 40, but sometimes they simply do not fit, so you have to use other configurations.
  • The high strength of concrete structures obtained after construction. Solid products can withstand even significant loads, and hollow versions allow you to create strong and durable walls. If special reliability is needed, then variants with groove fastenings will do, they are fixed especially reliably, and the walls are much stronger after the work is completed.
The photo shows a groove-tongue joint system, which allows you to create strong longitudinal and angular joints to ensure the greatest strength.
  • Selection of manufacturing options: You can purchase both solid concrete blocks and hollow products, which are distinguished by their lower weight, making it much easier to work with them. In addition, you can purchase options with a filler, most often it is either slag or expanded clay. And finally, the most common option - blocks of cellular concrete, characterized by low weight and high thermal insulation characteristics.
  • The possibility of self-manufacturing products. Instructions for the work is very simple, besides the size of the finished product may be different - it all depends on what form will be used. It should be remembered that you should not make too large dimensions, for example, you can hardly lift full concrete blocks 40 by 40 by 40, therefore it is better to make elements of generally accepted dimensions.
Forms can be of various sizes and configurations, you can buy them in finished form, and you can make yourself
  • The price of this group of products, regardless of the variety, is fairly democratic, which makes them available to the widest range of developers.. But do not chase for cheap when buying, as too low cost often indicates the appropriate quality.

Note! When buying, you should ask the seller about the presence of documents certifying the quality of products. This is the only way to ensure that products are manufactured in the factory in compliance with all the necessary technology requirements.

Types of blocks and their features

All products of this type can be divided into two large groups depending on the specific application. Let us consider in more detail each of them.

Elements for foundations

Products of this group must meet several basic requirements:

Strength All elements of the base are subjected to a number of adverse loads, so they must meet the highest quality requirements.
Moisture resistance A very important factor that directly affects reliability. Since concrete itself does not belong to materials that are highly resistant to moisture, it must be further treated or added to the composition of water-repellent agents.
Frost resistance Since in most parts of our country winters are cold enough, concrete must have high resistance to freezing.
Convenience in work A very important condition, because the more convenient to work with products, the higher the quality of work. To work with large items need to attract lifting equipment.
The foundation is an important part of the building structure, on which the strength of the entire structure directly depends

The following types of blocks for the foundation can be distinguished:

  • A widely used and well-known dembler - concrete blocks 20x20x40, which are used most often due to ease of operation and democratic cost. Products are made full-bodied, although, as studies have shown, the presence of several small cuts does not significantly affect the overall strength, but the load on the base is reduced and the insulating properties are improved, which is also an important factor.
  • FBS blocks are large, so installation can be carried out as soon as possible. The disadvantage is a large mass of products (if you ask how much a concrete block weighs 240 by 40 by 60, then you will be surprised - 1,300 kilograms). Naturally, to carry out work without lifting equipment is simply impossible.
Laying such products without a crane is not possible

It should be noted that the size of reinforced concrete blocks vary widely enough - from 90 to 30 to 60, and up to 240 to 60 to 60. But even the smallest version weighs 350 kilograms, so the lift will be needed anyway.

Wall blocks

This group includes a number of the most various products.

Consider the most popular and common ones:

  • Slag-concrete products belong to one of the most budgetary sectors, but at the same time they have rather high performance properties and a solid heat holding coefficient.
  • Similar to the first option - expanded clay concrete blocks, instead of slag, they use more durable expanded clay, which has excellent thermal insulation characteristics. Of these elements you can build the whole house, however, it will have to finish, as the appearance of the building will not be very attractive.
Expanded clay products are very popular.
  • Gas silicate structures have excellent thermal insulation characteristics. In this case, the dimensions of lightweight concrete blocks can be very different, which allows you to choose the best option for external walls and for partitions.
  • Foam concrete products are similar to gas silicate products, but some of their properties are somewhat lower than those of the above described variant. Concrete blocks 40 to 20 to 40 are ideal for the rapid construction of partitions, they cost a bit, and with their functions they do well.

A separate option is a concrete block B 1 20 50, these elements are not used for the walls, they are used to make drainage structures on the highways. This option is practically not used in private building.

Such unusual elements also apply to blocks.

Tip! Gas silicate blocks must be further insulated. Do not believe the claims that they are sufficient for high-quality insulation, in fact, this is far from true.

Conclusion

Selection of optimal parameters is very important, since the strength of the structure and its performance characteristics depend on it. The video in this article will tell some points in more detail.