Ceramic blocks for building a house: pros and cons

Ceramic blocks for building a house

Other names for ceramic blocks: warm ceramics, large-format stone, porous ceramics, ceramic stone or simply ceramic block. In Russia there is GOST 530-2012, according to which the material is called “ceramic stone”. Like all ceramics, a ceramic block is created from clay, by firing it and special shaping. Unlike brick, according to GOST, a ceramic block-stone can only be hollow.

Ceramic stone can be with protrusions for tongue-and-groove connection, they are located on vertical faces, with a polished or unpolished supporting surface (it is called a bed – this is a working face that runs parallel to the base of the masonry), with flat vertical edges. The voids themselves can be located both vertically and horizontally..

Ceramic blocks for building a house

One ceramic block can be 2.1-14.9 times larger than a standard brick! This is already a plus, because the installation process will go faster. The voidness of a ceramic block is from 50% to 72%, while for a brick this figure does not exceed 40%. That is, with its rather large size, the ceramic block is rather light, the average density is 650-1000 kg / m3. Despite such a high porosity, the outer walls of the ceramic block should not be thinner than 8 mm, otherwise the building material will not be as strong as needed.

The main material for creating ceramic blocks, of course, is high-quality clay, fusible, usually mined at the manufacturer’s quarry. However, burnout additives, the so-called porous agents, are added to the clay. They are usually small sawdust, straw, rice husks, peat. All these additives simply burn out during the firing process, and the clay becomes comparable in strength to stone.

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Ceramic blocks for building a house

Having dealt with the features of ceramic blocks and their main differences from hollow bricks, let’s move on to the advantages of the material:

  • as we already wrote, laying ceramic blocks takes less time, they are simply larger than bricks and at least replace two standard brick products.
  • the blocks are light, that is, the pressure, the load on the foundation will be less, you can save on it.
  • due to the numerous voids inside the ceramic stone, the material has a low thermal conductivity. For the best samples, this indicator ranges from 0.08 to 0.18 W / (m • ° C). The house will turn out to be warm, an additional layer of insulation is not required.
  • good sound insulation performance.
  • absolute ecological cleanliness.
  • ceramic blocks do not burn.
  • leading manufacturers give a guarantee for building materials up to 50 years.
  • if ceramic blocks have grooves on the sides, that is, a tongue-and-groove connection, this allows you to save mortar for laying. The joints are very tight, and in fact the smaller the gaps, the warmer and stronger the wall turns out.
  • vapor permeability.
  • simplicity of external decoration. Ceramic blocks are rough, plaster adheres well to them, you can use various finishing materials. To improve the quality of the wall, it is advisable to plaster on both sides.

The strength of ceramic blocks allows building buildings up to 9 floors high from them, but they have gained great popularity in private housing construction. If we compare with ordinary hollow brick, then ceramic blocks:

  1. put in faster.
  2. the manufacturer guarantees a longer service life.
  3. weigh less.
  4. more reliably keep warm in the house.
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Ceramic blocks for building a house

It would seem that ceramic blocks have some advantages. However, many homeowners are put off by the price. Today the most widespread and popular ceramic blocks are Porotherm. So their price can range from 1.48 to 4.5 euros per piece. That is, about 102-310 rubles for one ceramic stone, depending on the size.

In addition, the manufacturer and supplier should be carefully selected. Although the production of ceramic blocks is possible only in modern factories, and this reduces the risk of encountering fakes and defects, manufacturers often overestimate the strength indicator. Therefore, for fidelity, choose the maximum indicators, in fact they may be less.

The main disadvantage of ceramic blocks is their low bearing capacity. Their walls, despite the requirements of GOST, are still quite thin, reaching only 16 millimeters. That is, you cannot attach a ladder or a heavy metal rack to them … And in order to hang an ordinary kitchen cabinet on a wall made of ceramic blocks, you will have to use special dowels designed for use on hollow ceramics.

Ceramic blocks for building a house

In addition, since the ceramic stone is quite large, it is difficult to build small, broken, arched forms from it. During storage, ceramic blocks should be protected from moisture, and when erecting walls, serious training should be carried out to protect against groundwater. However, such preparation will not interfere with any construction of a house..

In general, according to reviews, ceramic blocks have more advantages, which ensures their popularity in European countries..

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