What are foam blocks?
This material has long occupied a worthy placein the market of building materials, and this is not strange, since he has much more advantages than disadvantages. So, foam blocks are made of lightweight cellular concrete, which is made using sand, cement and water, as well as modifying fillers and foaming agents. Industrial production of foam concrete began in the 30s, and only since the 90s in Russia the construction of houses from foam blocks began to gain popularity. Inexpensive, reliable, fast - the three main qualities of this unique material.
Advantages of foam concrete
One of the advantages of foam concrete is its weight: it is much smaller than that of ordinary concrete. The lightness of the material is achieved by the air bubbles formed as a result of foaming the solution. Due to the low weight, the construction of the house from the foam blocks is much simplified, since there is no need for a massive foundation and the attraction of heavy equipment during the installation of foam blocks. The next positive point is the cheapness of this material due to the technology of its manufacture. Therefore, for the construction of houses from foam blocks, prices will be less by an average of 50% compared to the construction of houses made of bricks or wood. A very important quality is the durability of the foam blocks. Buildings of the mentioned material can stand for more than a hundred years, but on condition that the construction work was carried out correctly, and when the building was used, the necessary conditions were met. Another advantage of foam concrete blocks is their large size. One standard block (40x30x25 cm) is equivalent to a clutch of 15 bricks. Thus, the construction of a house made of foam blocks significantly reduces labor costs and accelerates the construction process. For example, a small team of builders in a couple of weeks will be able to build a house with an area of 120 m2. To all these positive qualities of foam concrete it is necessary to add still simplicity of its laying, processing and facing, fire safety, ecological compatibility, high heat and soundproof properties.
Minuses of foam blocks
With all the listed advantages of foam concreteblocks, they, unfortunately, are not without some drawbacks. First, the construction of a house of foam blocks limits the number of storeys of the building. The maximum number of floors is 3, and the maximum height of the bearing wall is 12 m. Secondly, foam concrete requires additional waterproofing, it has a high vapor permeability, and because of the formation of condensate blocks can shrink and deform. And, thirdly, because of low mechanical strength and unaesthetic appearance, foam blocks require additional finishing.