What house to build: we compare aerated concrete, expanded clay block or silicate block


Before starting construction, each owner of the future home chooses the material from which it will be made. We will help you choose the most suitable option.

What kind of house to build?

Before starting the construction of a building, you need to decide not only on the material, but also on the project of the house. You can get it in the following ways:

  • Contact a specialized bureau, where they will draw up a personal project with an estimate for you or offer one of the standard ones. As a rule, this is quite costly, but it allows you to get a perfectly calculated material.
  • Some stores offer the project for free when purchasing materials for construction, these are, as a rule, large chains, you will need to follow their promotions. This is not very convenient, because at the right time such an offer may not be available in the store you like.
  • Find a project on the Internet: on some sites you can find something suitable for free.

Before laying the foundation of the building, it still does not hurt to invite a specialist who will help you study the soil and calculate what foundation you need.

In addition, it is worth considering how many floors there will be in the house. A one-story house has its own characteristics, so it is worth considering the pros and cons right away. The benefits include the following:

  • There are no stairs inside, which is much more convenient and safer, if children or retirees live in the house, you can plan the space more efficiently.
  • It is easy to maintain the façade, as a stepladder is enough to climb up.
  • It is easier to install communications, it takes less material if the area is small.
  • When calculating a house of 10 * 10, less material will go to the walls.

However, there are also disadvantages, which include the following:

  • It is difficult to plan a room without walk-through rooms.
  • The same amount of money will be spent on the roof and foundation as on a 2-storey project, but the living area will be half as much.
  • A large plot of land is required.

If we consider a two-storey house as an option, then its advantages and disadvantages should be taken into account. The positive aspects include:

  • Large selection of projects and space savings. You can build a house of 120 square meters or more. m on a small plot of land.
  • Huge selection of available projects.
  • Saving roofing material.
  • Possibility to reduce the cost of insulation.

The main cons:

  • It is difficult to maintain the facade, as it is problematic to get to the second floor.
  • Not very good soundproofing between floors.
  • The house has a staircase, it takes up a lot of free space, and debris and dust accumulate under it. In addition, the construction is difficult for old people and children to overcome.

Heating

If the house is one-story, it is possible to save on pipes, since the optimal shape in the diagram is spherical, the heat loss, respectively, is minimal. Much more materials are spent on a two-story structure, since a cubic shape is optimal for it. And if the most economical form for a one-story house is an area of ​​10x10, then for two floors an area of ​​6x6 or 9x9 meters will be cheaper.

What to build a house from?

When choosing a material, the question arises which one to choose: brick and wood are not only very expensive, but also quite laborious to work with. If you want to save money, the decision should be made in favor of the block. However, not everything is so simple here either. There are many different types of blocks.

Aerated concrete

Aerated concrete is actively used for the construction of private houses. It is a lightweight porous material with high strength and affordable cost. Let's consider its features:

  • Aerated concrete blocks differ in strength. Depending on how many floors there are in the house, it is necessary to choose a type of corresponding marking, the higher it is, the heavier and more expensive the material. For example, a D500 30x25x60 block weighs approximately 30 kg. This corresponds to the volume of 22 bricks, which weigh 80 kg. Using a gas block, you can save on the foundation.
  • Thermal conductivity: thanks to the porous structure, heat is well retained inside the walls.
  • Breathable walls made from natural materials. Such a house is environmentally friendly and has its own microclimate.
  • Fire safety: material does not burn.
  • High frost resistance: the block is not afraid of low temperatures, their drops.
  • The material is not afraid of moisture, although it does not like constant waterlogging.
  • Profitability: large dimensions can significantly reduce the number of blocks used and increase the construction speed.
  • Easy to saw, has smooth edges, needs almost no additional sanding, the walls are perfectly flat.
  • After construction, a minimum shrinkage occurs, not exceeding 0.2-0.5%.
  • Smooth, which saves on plastering.

To connect aerated concrete blocks, special glue is most often used. Factory blocks are very even, deviations are no more than 1 mm, which allows you to get a perfectly flat wall. When using glue, the seams are also even, so you can significantly save on consumables and plaster. In addition, there will be no heat loss, since the masonry joint will not have holes. The glue layer is thin, the work is carried out quite simply; how exactly can be seen in the video. The principle is simple: the glue is applied to the blocks, and they are stacked on top of each other with an offset. Glue is a powdery mixture that includes quartz sand, polymer and natural additives, and cement.

Expanded clay block

Wall blocks made of this material are in many ways a traditional solution, since they are used much more often than alternative options and are quite well known to many builders and homeowners. They are used for the construction of not only private houses, but are also used by some developers when creating high-rise buildings. The weight of such a block is not very large, the optimal size allows you to work with it comfortably, and the affordable price reduces construction costs.

The block is made from a mixture of concrete and expanded clay, has a good ability to hold back heat and high strength. Its advantages:

  • Affordable price.
  • Light weight - 15 kg on average.
  • Durability.
  • The ability to retain heat and isolate sound.

Characteristics and properties of expanded clay blocks:

  • Density - 700-1500 kg / m3.
  • Easy to plaster.
  • Resistant to environmental influences.
  • Resistant to frost, moisture, and other climatic conditions.
  • Does not burn and is not afraid of moisture.
  • Suitable for creating a foundation.

Disadvantages:

  • Unaesthetic appearance, the blocks are imperfect, therefore they require plastering or additional finishing.
  • Difficult to saw off and fit.

Silicate block

A silicate block is in many ways similar to aerated concrete, but does not have such voids. It is made from concrete, lime and sifted sand without the use of a blowing agent. The mixture is compressed using high pressure and then fired in an oven. This material is widely applicable for low-rise and high-rise construction, it is able to suppress noise well.

The main advantages include:

  • High indicators of strength, durability. From a silicate block 25 cm thick, 9-storey buildings can be erected.
  • Not afraid of fire.
  • Provides good sound isolation.
  • Not affected by mold and mildew with proper care.
  • Vapor permeable.
  • Almost perfectly flat. It is possible not to plaster (putty is enough).
  • Saving space.
  • High laying speed and minimum interior finishing work.

Disadvantages:

  • Large weight, therefore, the structure will require a strong foundation.
  • If the climate is cold enough, the silicate block will have to be seriously insulated: with a block thickness of 250 mm, insulation with a thickness of 130 mm is needed.
  • If the room is damp, waterproofing is needed, so this is not the best solution for basements and bathrooms.

Table: Comparison of prices per m2

Which house to build, it is up to you to choose, the options presented have their advantages and disadvantages, however, they all differ in strength and durability. After weighing the pros and cons, you can decide exactly which option is right for you.

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What blocks are better for building a house: an overview of types and characteristics

The appearance of masonry blocks was caused by two main reasons: the desire to reduce the laboriousness of the construction of walls and to improve their energy-saving characteristics.

Traditional clay bricks have ceased to suit modern builders with their size. However, it was unrealistic to increase its dimensions several times and reduce its weight without changing the technology of molding and firing. Therefore, all efforts of researchers were aimed at finding substances that, under certain conditions, create a large volume of gas or foam.

The search ended with the creation of two of the most popular types of masonry blocks: foam concrete and aerated concrete (gas silicate).

In addition to them, construction science offered the market expanded clay concrete, wood concrete and porous ceramic blocks. The most "ancient" type of artificial stone - slag concrete, which was originally based on blast-furnace slag, was not forgotten either.

Looking at the existing variety of wall materials, it is difficult for an inexperienced person to decide which blocks are best for building a house. For a competent answer to this question, it is necessary to consider their main characteristics, sizes and prices.


Block cost

Let's take two popular "pies" for walls: aerated concrete block 400 mm thick and expanded clay concrete block with 380 mm bandaging and compare the total cost of 1 sq. meters of the wall.

1 square meter of aerated concrete costs on average 1,200 rubles (3,000 rubles / m3 * 0.4 m (block thickness) excluding delivery.

1 square meter of expanded clay blocks will cost less than 1,026 rubles (2,700 rubles / m3 * 0.38 m).

Account "Keramzitoblok-gas-block": 1-0 in favor of expanded clay.


In 2020, the opening of the Porevit paving slabs plant took place. The enterprise was founded on the initiative of the Vybor group of companies and the Partner holding.

The plant is equipped with a vibrocompression technological line of the German company Masa Henke. Modern equipment and the latest technology allow you to obtain increased strength and maintain the color of paving slabs for a long time. All manufactured products are manufactured by dry vibrocompression and comply with GOST 17608-2017.

All materials used for the production of products are subject to control of the plant's own laboratory. The production capacity is 2,000 sq.m. tiles per shift. The warehouse capacity is more than 100 thousand square meters. The products were awarded the “100 Best Goods of Russia” sign.

Distinctive features of the Vybor paving slabs are:

  • Unique collections - 6 different finishes:
  • Standard - smooth concrete surface, economy class
  • Granite - rough surface due to granite chips
  • Leaf fall is smooth - a smooth concrete surface and a smooth gradient color transition from one color to another
  • Leaf fall granite - a rough concrete surface and a smooth gradient color transition from one color to another
  • Artificial stone - imitation of the texture and color of natural stone
  • StoneMix - grainy surface, shine of minerals and stones in the sun (marble and granite chips).
  • Various forms (10 types)
  • Various colors (29 options)
  • Increased strength and long service life 10-year official manufacturer's warranty
  • Preservation of the color of the tiles for many years due to the use of high-quality German dyes
  • Correct geometric shape
  • Uniform joints and ease of installation.

Due to the high level of quality and aesthetics, paving slabs of the Vybor trademark will be of interest to residents of private households, architects, landscape designers, construction companies, regional and municipal customers.


Aerated concrete

Foam and aerated concrete blocks are very popular materials. Their benefits are well known to builders. Firstly, they have good thermal insulation characteristics. To fulfill the heat saving rate, a wall thickness of 45 cm is needed from blocks with a density of 400 kg / cubic meter. m and 63 cm - for blocks with a density of 500 kg / cu. m. In any case, the thickness of the wall is not so great - let's remember a brick wall 2 m thick.

Secondly, the total weight of the house with all this turns out to be not so great in comparison with a similar building made of bricks and expanded clay blocks. It makes sense to make a less powerful foundation, which will save a lot.

Thirdly, factory gas silicate blocks have excellent geometry, so when finishing, you can do with thin plaster inside and out - it is also quite a budget solution.

Aerated concrete - lightweight material with verified dimensions

Unfortunately, there are also enough disadvantages. Cellular concrete is very sensitive to foundation movements. The slightest mistakes immediately turn into cracks along the walls, which in fact negates the advantage of light support and forces you to do the same expensive and massive structure.

Another problem is hygroscopicity. The porous material is able to quickly absorb moisture, as a result of which it gradually degrades

The question of the service life for everyone involved in the production of aerated concrete is the most painful one. Such units have been produced since 1920, that is, they have been in operation for almost 100 years. However, buildings older than 50 years old of them can be seen only in those regions where the air temperature does not drop below zero even in winter.

In frost conditions, a block house is operated without any problems for no more than 30-40 years. Then cracks begin to appear in the walls, problems arise with the fastening of windows, and heat-saving properties deteriorate. Perhaps for this reason, manufacturers, as a rule, do not indicate warranty periods on their products.


A house made of porous concrete begins to collapse after 30-40 years

Cellular blocks are not strong enough to support concrete floors. You can use wooden ones, but before that you must definitely pour a concrete Mauerlat. And this is a cold bridge that requires insulation of the structure. Thus, it is probably not worth using porous concrete for the load-bearing walls of the house.


Watch the video: Using Aircrete To Repair A Pizza Oven


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