Country house with a sign of quality: an eco-friendly, lightweight, durable

22.03.2011 07:36
Articles about the construction | Country house with a sign of quality: an eco-friendly, lightweight, durable Over the centuries, brick house was an accomplishment. That's about it (not the same kind of stone - building materials in our Palestine is very rare) sighing our ancestors: "Labour is not righteous nazhivesh chambers of stone!". Today brick retains its popularity, but life goes on: a huge number of alternatives. About them - all kinds of cellular concrete blocks - today we'll talk.

Concrete with a plus

Simple listing of these materials is impressive: claydite, slag concrete, derevobeton, aerated ... can continue for a long time. The first thing that catches your eye - a mandatory part of the "concrete" in the title. This is no accident: all we discuss building materials actually created based on it.

"Standard Concrete is very durable, but at the same time heavy, expensive and has poor thermal protection - explained Oleg Paris, Director of Land Development UK" Volga problem. " - To make the units more light, thermal insulation and less expensive in the cement instead of the traditional rubble began to add various impurities.

What is it? Most diverse. First, of course, what is at hand. For example, all kinds of waste. If there is wood production, then we derevobeton (options - Arbol, opilkobeton, struzhkobeton ...). Slag resulting from the metallurgical industry, gave us a cinder. More can be added or expanded clay crumb foam - though it is not waste, but a very cheap material.

Then came the idea to add a concrete ... bubbles. Lightness and thermal insulation will only increase. There are two similar materials: foam and aerated concrete. Both are obtained due to the fact that during the solidification of the block are formed in the gases. And the difference between them, explaining the company MOZAIK Development, which is now leading the project «Smartville Dmitrovka" is the mode of production: foam is produced by simple chemical reactions in solution, this technology allows material on site, the so-called "Artisanal".

And here is aerated (another name - autoclave gazoyacheisty concrete) is born in the factory. Gas bubbles are the result of chemical processes involving aluminum powder - it happens in an autoclave at a temperature of 190 degrees and under pressure. As a result of aerated concrete more durable and, what is called the predictable - the quality is guaranteed. While the foam properties depend largely on what and how there is a mixture of craftsmen-builders: whether everything will be wonderful, then there will crumble, crumble, etc.

Differences: between a ...

For all the "relatedness" of the material between them, there are significant differences. Derevobeton and its derivatives, as well as slag concrete - in many respects, good materials, are also very cheap. However, to apply them in the construction of residential house experts advise. "When used junk fillers not know what they are - said Oleg Paris (" The Volga problem "). - Sawdust and waste products can have harmful impurities. In addition, slag can be also radioactive. "

Aerated concrete blocks and are free from these shortcomings. On the contrast of these materials from each other, we have little say. You can add that the concrete blocks more precise geometric dimensions - and, as a consequence, they are easier to stack, lower costs mortar or adhesive. "Aerated concrete has a more homogeneous structure, which leads to better thermal insulation, - says Dmitry Languages, director of construction company" Summer Project ". - Do walling get less shrinkage (0.3 mm square. Aerated against m at 2-3 mm of foam). Hence - is less likelihood of cracking. Aerated concrete is also more durable, hardy (can withstand 100 cycles of freezing and thawing, while the foam concrete - only 25). But, of course, more expensive - up to 10%.

"Aerated concrete can be called one of the best materials for low-rise construction - sums up Julia Severinenko, CEO ZemAktiv. - It is durable, fire-resistant, environmentally safe, has a small weight, easily processed. Such blocks have excellent thermal insulation and strength. Aerated concrete blocks can be used in the construction of buildings of various sizes. " In addition, the expert adds, this material can be used in "large" construction (even skyscrapers) - provided that the building frame is constructed of conventional concrete, and the blocks used for construction of interior partitions.

... And with a brick

In addition to the "competition" with each other, all the "betonovicham" must constantly bear comparison with a brick. In the public consciousness last explicitly considered more high-quality, prestigious and durable material. Is this true?

According to our experts, the only indisputable advantage of brick - strength. "It is two times stronger cellular concrete - it's a fact!" - Categorical Valery Mishchenko, Chairman of the Board of Directors of the company «Kaskad Family». So, having decided to build something massive, you must carefully read the certificates and technical specifications: too much stress aerated concrete can not sustain.

But all other considerations at least debatable. For example, brick is more durable material. But the main threat to today's building - this is not the enemy core, and rams, and the climate: at each transition temperature at 0 degrees is freezing and thawing of moisture inside the walls, and it destroys the wall. A brick wall stands 50-70 such cycles, whereas the quality of aerated concrete, the figure is 100 (although the foam, as we recall, 25). The conclusion is simple: aerated concrete is proving to be more durable!

The next aspect - insulation. I brick it useless - there are calculations which show that for the normal heat preservation brick wall should be two meters. So build it certainly can not - so in reality the brick walls are complemented by all sorts of heaters. A cellular concrete blocks, said Evgeny Shevchenko, Director of Sales of the village of "Little Italy", performed and constructive, and heat insulating function.

Brick much heavier. It means a lot of inconvenience - and the high cost for transportation and the need to build the building of a more powerful (and therefore expensive) foundation. "By itself, the cost of bricks in 1,3-1,5 times the value of aerated concrete - says Valery Mishchenko (« Kaskad Family »). - And with the construction cost of 1 square. m walls of the traditional brick house would cost the owner approximately two times more expensive than cellular concrete. For example, building a small house of 90 square meters. meters, will cost about 2.5 million rubles (material + work). Cottage area bigger - 150 "squares" - 3,5 million rubles.

You can also add that most blocks can be processed (this makes the construction easier and cheaper). Also there is such a thing as "nailability" - to put it simply, an opportunity to hammer a nail into the wall to hang a shelf or picture. In the aerated concrete blocks - please, and a brick wall just by impact drill, followed by hammering dowels.

And finally, the environmental impact. The most seemingly strong argument in favor of the brick. He - just baked clay, while in all sorts of hell-knows-what-a-concrete adds various "chemistry", which then will poison people ... But in practice things are not so simple. On the one hand, remind us of experts MOZAIK Development, today various chemical plasticizers used and the manufacture of bricks. On the other - high-quality components that were released well-known manufacturers, have all necessary certificates, including sanitation and hygiene. Also do not forget that the inner walls of the house, usually plastered - so the chances pernicious "chemistry" to seep into the living quarters vanishing small. Although, of course, in any case, better take a closer look at something that would get it, read the documentation. And - do not chase the cheapest: it is in such cases, people usually get, to put it mildly, not the best quality goods.

... So why brick is still considered the material better than cellular concrete? The point here is probably the prevailing stereotypes. Someone once built a house out of cinder blocks substandard, was not the best result - and now tells all about his bad experience. And students (in full accordance with the principle of whether he stole the coat, whether he has - but something was ") refuse to trust all this class of materials.

There is another consideration - is a purely Russian. The fact that the low price - this is great dignity in the eyes of some people, and serious flaw in the eyes of others. The greatest flowering of this phenomenon was, of course, in 90 years - to have something not as expensive as at others, it was somehow "un-patsanski, lads would laugh. Today, of course, the consumer is more inclined to take your money - but remained relapse. And the market has a lot of people who want to buy a brick house without fail - precisely because it is expensive, and it "all."

Summary of the magazine

Aerated concrete - a promising technology. And best of all this convinces her to use in the formal construction. When on their site is doing something a private person - maybe it's folly to. But when a professional developer is building a village - it is an absolute "quality mark". Country sites where houses are built of aerated concrete, now very much - as an example, says Dmitry Taganov, head of the analytical center "Incom Corporation", can result in "Little Scotland".

Extensively used method and abroad, including in Europe. So this is technology, which is recognized in the world, with a good future.
Vladimir Abgaforov

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