A block house is a structure built using concrete blocks of various types, such as silicate, expanded clay, or foam concrete. The method is used both for the construction of multi-family and private houses. The construction of block houses, as a rule, involves laying blocks on cement mortar followed by reinforcement to increase strength.

The construction of block houses is faster since the blocks are relatively large in size compared to brick, which significantly reduces the construction time of the building. Depending on the composition, the blocks have different properties:

  • Foam concrete blocks. Foam concrete blocks have excellent thermal insulation properties due to their porous structure. They are quite light compared to brick, which facilitates installation and reduces the load on the foundation. The price is acceptable for the construction of small buildings with a low budget. However, foam concrete blocks can absorb moisture and require additional waterproofing, especially in damp regions.
  • Silicate gas blocks. Silicate is stronger than foam concrete and can withstand heavy loads. The blocks are easy to cut and shape. But silicate is usually more expensive than foam concrete. He also doesn't like moisture.
  • Arbolite blocks. Arbolite consists of cement and sawdust. The unit provides good sound and thermal insulation and also tolerates loads well. Arbolite is resistant to deformation, and cracks appear on them less often than on gas silicate blocks. However, arbolite is even more susceptible to moisture, so it is better not to use the material at all without high-quality waterproofing.

In addition to foam concrete, silicate, and arbolite, there are other types of blocks used in block houses:

  • Expanded clay concrete. They have high strength and thermal insulation, are resistant to frost, but are heavier and require a reinforced foundation.
  • Polymer concrete. They contain polymer additives that increase resistance to moisture and chemicals, but this negatively affects the price.
  • Cinder blocks. They are made with the addition of slags and industrial waste. The blocks are quite durable and inexpensive, but they are inferior in thermal insulation and environmental friendliness to other types.

It is important to note that block structures, as a rule, need additional external and internal finishing. Due to irregularities in the joints and cavities in the structure of the material, it is necessary to use plaster or other leveling finishing materials.

Advantages and Disadvantages of Block Houses

Block houses are known for their good thermal insulation qualities, and they retain heat even in cold climates. The block material provides high fire resistance, and its porosity and thickness provide sound insulation.

Nevertheless, there are disadvantages. For example, the blocks are quite large and heavy, which makes them difficult to transport and requires the use of special equipment. As a result, although the cost of the blocks may be relatively low, shipping and finishing costs may offset this advantage.

Nuances of Block Houses

Block houses are suitable for the construction of buildings of various storeys, but their popularity is higher for small and medium-sized objects. In apartment buildings, block structures are sometimes inferior in strength and durability to monolithic or panel houses. It is also important to take into account that block walls, if technology is violated, may eventually become cracked, especially in regions with frequent temperature fluctuations. In areas with high humidity, materials such as silicate and foam concrete absorb a lot of moisture and require reliable waterproofing.