In conditions of the Russian climate, an important role is played by the thermal conductivity of the brick used in the construction of a residential house. It can differ significantly depending on many factors, which are expressed mainly in density, the presence of voids and volume. A high coefficient indicates that the product cools very quickly and heats up. Such structures are poorly protected against temperature fluctuations in the external environment. From this we can conclude that the thermal conductivity of a brick is its ability to transmit heat energy. Unlike ceramic products, their silicate analogs benefit in this respect.
During the construction of the house, the dimensions of the brick must also be taken into account, which can be conditionally divided into three categories. That is, the product can be single, double or one-and-a-half. It must be said that the one and a half brick is actually thicker than usual only by a third, and not by a factor of 1.5. Usually at manufacturing the expense of a material is not proportional to a gain of dimensions. The primary factors affecting the final cost of the product are brand, material and producer. European products are distinguished by high prices, which is explained not only by the increased cost price, but also by transportation costs.
The thermal conductivity of the brick is influenced by the density, which in the case of a solid article should be above 1500 kg / m3. This characterizes it as a quality material with excellent thermal insulation properties. A high density index allows for better adhesion to the solution. During wet weather, a brick with such characteristics can absorb a cement mixture. Typically, the moisture absorption is approximately 8-9 percent, which together with other parameters can guarantee the necessary thermal conductivity of the brick.
Serious requirements are imposed on the appearance of the product, but some defects are not considered to be a marriage. It is allowed to have repulsed corners and edges if their depth does not exceed 10-15 mm. However, as a result, no more than two defects per unit of material should be obtained. Cracks up to three centimeters long are allowed, but one for each face. Also, it is allowed to have punctures on the surface of a depth of 10 mm - no more than three pieces per one article. As for facing bricks, the requirements are much higher. On the front side, cracks, chips and other defects visible from ten meters should not be observed.
Red brick for the bath is ideal, especially when it comes to the foundation and supporting walls. It is supplied in the form of pressed clay briquettes, which have undergone thermal treatment. Internal partitions can be made of facing bricks, since this material is easy to install and has a relatively small specific weight. The furnace should be made of refractory bricks in order to obtain a reliable design. It is not recommended to use a silicate brick when building a bath, because it is sensitive to water and temperature changes.