The modern market literally enslaved such building materials such as foam block and gasoblock. Many consumers are confident that these names belong to one product with their advantages and minuses. But in fact, these are different building materials that have quite a lot of differences. Today we will deal with what they differ from each other and we define that it is better - a gasoblock or foam block.

Characteristic

Foam concrete, aerated concrete and foam-arobular blocks today are in great demand. Houses erected from them are very often found. The relevance of such building materials is due to their available cost and good operational performance. In addition, it is necessary to note the fact that not only residential buildings can be erected from the listed blocks, but also various surviving buildings.

To answer on main questionWhat material is better - foam block or gasoblock, it is necessary to familiarize yourself with their characteristics, advantages and disadvantages.

Foam concrete

Foam block is a very popular material that enjoys enviable demand from modern consumers. It turns out quite stable and durable buildings, to cope with the construction of which is possible in the shortest possible time. Work with foam block is easily - for this it is not necessary to have special education or extensive experience in construction.

Most people wanting to build a house or a surplus building choose foam concrete blocks Due to their low cost. Moreover, some users make this material with their own hands - the manufacturer's manufacturer's recipe is very simple and understandable, you just need to adhere to the right proportions.

The benefits of foam concrete blocks are a lot, as well as disadvantages.

To begin with, consider what these building materials are good:

• Foam block distinguishes low thermal conductivity. Thanks to them from this building material, very warm and cozy at homewhich sometimes do not need additional insulation.
• Such materials have low weight, so work with them is not laborious. Moreover, with many processes, the master can handle alone, without attracting assistants.
• From the above advantage of foam blocks, one more important plus is followed - due to the low weight, foam block construction does not give impressive loads on the design of the foundation.
• Buildings from foam block can boast of good sound insulation qualities.

• Foamclock is a material with a large volume, therefore, a different kind of construction from it is made quickly.
• Another significant advantage of foam blocks is that they are inexpensive. Most consumers can afford to buy these building materials.
• It is impossible not to mention that foam blocks are very fatty material. If necessary, they can be written or cut with a hacksaw.
• As a rule, foam blocks are characterized by environmental safety. They do not harm the health of households. Of course, during the manufacture of these materials, synthetic components are used, but their content is too little to harm the person.

• Foam block is a material that boasts a long service life. Moreover, over the years, foam blocks do not lose their positive qualities.
• This building material is not afraid of fire. He does not support the flame, and does not ignite himself.
• Many users mistakenly believe that only simple and monotonous erection can be made from foam blocks. In fact, it is not. If the owners have such a desire, a foam block house can be made very original and fashionable.
• By itself, the foam block does not require a mandatory decorative finish. Of course, it will be more protected if it is covered with plaster or any other suitable material, but there is no priority.

As you can see, positive qualities have a modern foam block and its varieties. That is why today many users choose it to build houses (and not only).

However, not everything is so rosy - the above building material has substantial disadvantages with which it is also necessary to familiarize themselves:

• Foam block is a material that has a porous structure. because of of this fact Such products becomes more fragile, especially at the edges. For this reason, carry and transfer foam blocks need very carefully to accidentally damage them.
• As mentioned above, it is not necessary to separate foam block facilities, but it is better to do it. First, in this way, you protect the material from aggressive external influences, and secondly, the construction will look much more attractive. But here you can face one common problem - for finishing foam blocks you need to select special paints / plasters, which are designed for the base of foam concrete.

• Foam blocks required reinforcement. Usually fittings are installed at the joints of the materials. If you do not add the structure of reliable seismic, then you will not be able to build high-quality overlaps and put the same strong rafter design.
• One of the most important deficiencies in the use of foam blocks is that the modern market is literally overflowed by low-quality falsifications made under underground conditions. Such materials are often made with a violation of proportions, which leads to their increased fragility.
• If you want to make a residential building from foam concrete elements, then you need to take into account the fact that it is imposed on this work is permissible only after the scrupulous number of calculations. For example, you will need to determine the thickness of the construction walls, taking into account all the loads.
• For buildings from foam concrete, special foundations of the forming type are required.
• Some subtypes of foam blocks do not differ in proper geometry. Often, during construction work, they have long and scrupulously grind and cut into the same overlaps or walls to be smooth and neat.

There are a number of subtypes of modern foam concrete blocks.

They are divided into destination:

• Structural. Instances of this type are designed for serious loads. Often they are treated for the construction of multi-storey buildings. Large buildings from foam blocks are most often insulated, since this material is characterized by a considerable thermal conductivity.
• Heat insulating. These types of foam concrete blocks are very different from structural options. They are sociable, so the dwellings built of them are very warm. But thermal insulation blocks can not be called high strength. They are usually used only as an additional layer during the construction of residential buildings.
• Structural heat-insulating.These subtypes of foam blocks are considered universal. They collected excellent strength quality, as well as good heat insulating properties. Such materials are well suited for the construction of bearing walls or ordinary partitions. Very often from such blocks build a bath or a small height house.

There are such materials such as manufacturing method:

• Molded (cassette).The name of such foam blocks speaks for itself. During their manufacture, special forms are applied closed by partitions. This method of production is considered the most economical. However, the molded parts have one minus - the dimensions of the finished foam concrete blocks are inaccurate and poorly calmed.
• Curving.The foam blocks are made from the finished solution, which is cut into separate parts using a special steel string. These materials may well boast of correct and neat angles. In addition, they are geometrically verified.

Foam concrete blocks make different designs.

Depending on the specific purpose, one or another one of the following is used:

• Wall. These foam blocks are more common. They are often treated with country construction. It may not only be the construction of a private residential building, but also any subsidence.
• Partitioned.The second in demand are partitioned foam blocks. On-sufficiently thin - 100-150 mm. Of these, they build strong and wear-resistant partitions in the inside of the building. Due to its thickness, partition blocks are fragile, if required. Thanks to this distinctive feature of such blocks, experienced masters are manufactured beautiful arched structures.

• Special purpose.In the manufacture of special trays, foam concrete blocks are usually used. In these items are usually installed fittings.
• Reinforced. Such foam blocks are details of foam concrete, reinforced steel framework. Most often, reinforced blocks are used as jumpers instead of standard reinforced concrete elements.
• Non-standard.There are also special non-standard foam blocks. They are made specifically for buyers orders.

Focoblocks are available with different dimensional parameters.

Materials intended for masonry with glue manufactured with such dimensions:

• length: 188 mm Width: 300 (mm), Height: 588 (mm);
• 188 mm x 250 mm x 588 mm;
• 288 mm x 200 mm x 588 mm;
• 188 mm x 200 mm x 388 mm;
• 288 mm x 250 mm x 488 mm;
• 144 mm x 300 mm x 588 mm;
• 119 mm x 250 mm x 588 mm;
• 88 mm x 300 mm x 588 mm;
• 88 mm x 250 mm x 588 mm;
• 88 mm x 200 mm x 388 mm.

As for the foam concrete blocks, intended for laying on cement, their dimensions may be such:

• length 198 mm, width: 295 mm, Height: 598 mm;
• 198 mm x 245 mm x 598 mm;
• 298 mm x 195 mm x 598 mm;
• 198 mm x 195 mm x 398 mm;
• 298 mm x 245 mm x 298 mm;
• 98 mm x 295 mm x 598 mm;
• 98 mm x 245 mm x 598 mm;
• 98 mm x 195 mm x 398 mm.

Gasobutton

The main "competitor" of foam concrete is such a building material like a gasket. Many consumers who want to build a house or any surplus building on the site or some kind of pressure on it. This popular product, like a foam block, has its weak and strengths.

Let's start with good - consider the benefits of aerated concrete blocks:

• This building material is distinguished by a high density that can be from 400 to 1200 kg / m3. If you use high-quality wall material with a small specific mass, then you can spend on the construction of a particular design of a very little time.
• Foot concrete blocks are moisture-resistant. Even in conditions of humidity of air, a component of 60%, the indicator of gas blocks will be about 5%. If the level of air humidity reaches a mark of 96%, then it can reach 8%.

• Another significant plus of the aerated concrete is its fireproof, as in the case of foam blocks. This material without any obstacles can even withstand extremely high temperatures. In addition, the gasoblock does not support combustion.
• Not terrible with aerated concrete blocks and very low temperature values. Thanks to this quality, refer to such materials is permissible even in harsh climatic conditions.
• This building material and biological impact is not afraid. Aerated concrete does not need to additionally handle protective compositions or antiseptic means, like, for example, wood.
• This building material is distinguished by durability. The construction created from aerated concrete can stand and 100 years old.

• Aerated concrete is environmentally friendly. It has no dangerous toxins that have a negative impact on human health. With aerated concrete blocks on environmental friendliness, only a tree can be taken.
• Like foam concrete, aerated concrete has good noise insulation qualities. Buing a wall from this material with a thickness of 40 cm, you may not worry about noise that has been coming from the street.
• Another advantage of aerated concrete is that it has good thermal insulation qualities. Houses made from a similar material in many cases do not need to insulate. At the same time, a comfortable microclimate is always preserved inside such housing.

• The undoubted advantage of aerated concrete is the level of its strength. If it is properly reinforced, then you can build big house With three floors.
• This building material and ease of processing is distinguished. It can be cut or saw it if required. The block can easily give certain sizes and shapes. However, it is worth considering one nuance: a dowel is very poorly held in the aerated concrete walls, therefore it is recommended to use other fasteners - self-tapping screws.
• A little cement goes to the production of aerated concrete.
• This building material is inexpensive, because in its production it is used raw materials of natural origin - quartz sand, cement, lime.

• Aerated concrete is in a slight weight, so work with it is not too time-consuming. Its structure is also a cellular, so you can easily move such blocks without referring to the help of the crane.
• Aerated concrete is universal Materialwhich is used not only in the construction of houses or surplus buildings, but also in the manufacture of fireplaces, steps or fences. This advantage is due to the support of this material - it is possible to give it almost any form.
• This material is also characterized by the excellent characteristics of steam and air permeability. The data coefficient of the foam concrete is almost the same as the tree. According to experts, air circulation and the level of humidity in the house from such a material will be regulated naturally, forming a comfortable microclimate.
• Currently, aerated concrete blocks are manufactured at factories, where at each stage of production is carried out strict quality quality control.

Aerated concrete blocks are not perfect, as well as foam concrete options.

They are inherent in their minuses:

• For this material, high hygroscopicity is characteristic.
• If the foundation of the structure was erected with any violations, the gas unit buildings can give noticeable cracks. Moreover, these defects arise not only by masonry lines, but also on the gas blocks themselves. Microscopic cracks appear on this construction material in just 2-4 years.
• Yes, the aerated concrete blocks are responsible for the formation of the ideal level of moisture in the room, but over time these materials begin to accumulate an extra moisture in their structure. This leads to a reference and bundle of blocks.
• Aerated concrete has not the highest price, but it is higher than the cost of foam blocks.
• Gas blocks cannot boast sufficient heat insulating characteristics, especially if you compare them with foam blocks.

There are several varieties of aerated concrete.

Each view has its markings.

• D350. This brand is considered one of the most rarely encountered. It is due to the fact that such blocks differ fragility. It is permissible to install only as sealing. The level of strength D350 is 0.7-1.0 MPa.
• D400.This kind of aerated concrete is stronger and strong. This property of this material can be from 1 to 1.5 MPa. Apply similar materials in both the role of thermal insulation and the role of openings in multi-storey erections.
• D500.The strength of this building material is 2-3 MPa. Usually, such blocks are treated in the construction of monolithic buildings. They are suitable for low-rise construction.
• D600.This marking has high-strength aerated concrete blocks. The level of their strength can be 2.4-4.5 MPa. Thanks to its operational characteristics of the D600, the D600 amateur is permissible to use for the construction of buildings having ventilated facades.

It is impossible to say exactly which of the listed options for aerated concrete blocks is the best, since each category has consisses, and pluses.

Mark aerated concrete affects its final cost.

Aerated concrete blocks differ also with their forms:

• rectangular elements are used to construct partitions and bearing walls;
• reinforced parts usually buy for the manufacture of ceilings;
• t-shaped blocks are intended for overlaps;
• u-shaped aerated concrete blocks are used for openings;
• there are also dug-like options for aerated concrete blocks.

Gas blocks, as well as foam blocks, are thermal insulating, structural and structural heat-insulating. As for the size of the aerated concrete, then there is a lot depends on their shape.

Simple rectangular elements have such dimensions:

• length - 625 mm;
• width - 100 mm, 150 mm, 200 mm, 240 mm, 300 mm, 400 mm;
• height - 250 mm.

U-shaped blocks are available with such dimensional parameters:

• length - 600 mm;
• width - 200 mm, 240 mm, 300 mm, 400 mm;
• height - 250 mm.

Production technology

Foam concrete and aerated concrete are manufactured by different technologies. Consider them in more detail.

Foottonal blocks are manufactured as follows:

• First prepared necessary materials In the right proportions (they include sand, lime and cement). Being dry, they are mixed with special equipment for 4-5 minutes. After that, a suspension of aluminum powder is added to the mixed composition, the basis of which water acts.
• In the course of mixing, the lime enters the reaction with aluminum. Due to this, hydrogen is formed. Due to the strong gas formation, air bubbles are formed in the composition. They are evenly distributed throughout the solution.
• After that, already ready poured into the form. It must be prehered to 40 degrees. Pulley is made on ¼ from the volume of the container.
• When the composition is sent to the forms, they are transferred to a special chamber, where the material is further reducing. As a result, the volume of the resulting mass begins to gradually grow and acquires the properties of strength. To activate the necessary reactions in the solution, as well as for optimal distribution Its in shape, refer to vibrational effects.
• When the resulting composition reaches pre-hardening, from its surface you need to remove any irregularities. This is done with wire strings.
• Next, the composition gets from the chamber and goes to a cutting line.
• The next step of making gasoblocks will be sent to the autoclave.

Often, aerated concrete plates marked with the designation of AGB (the autoclave material is implied). At the same time, the autoclave itself is a kind of "pressure cooker" of impressive dimensions. In its conditions is injected, and then the pressure is withstanding 12 atm. As for temperature, it should be 85-190 degrees. In this setting, the concrete plates are prepared for 12 hours.

When the blocks are fully prepared in an autoclave, they are divided additionally, because during the preparation in some places they can connect with each other. After that, these materials are stacked in a special heat shrinking material or polyethylene.

Aerated concrete is made without the use of autoclave. At the same time, the hardening of the composition passes in natural conditions - in this case, special equipment is not needed.

But these materials are less reliable. They will give a big shrinkage and will not be so durable than autoclave options.

Foam concrete is made slightly simpler and easier. There are 2 methods of its production - cassette and sawing.

The cassette method involves pouring the solution into special forms.

The technology, referred to as the split, implies the fill of the solution in one large capacity, after which it will be waiting for its hardening and further cutting on separate elements required dimensions.

For the manufacture of foam concrete blocks, cement brands M400 and M500, clean sand without clay, foaming agent, potassium chloride and, of course, water.

Requirements for use

If you decide to use foam concrete or aerated concrete for building a house, then you should consider a number of specific requirements for using these materials.

• The foundation should be as strong as possible, despite the fact that such block materials are small and porous structure.
• The horizontal surface of the foundation design should be covered with waterproofing.
• Drilling holes, cutting, the stroke of blocks with cells is equally. A manual saw is used for cutting, holes drill the drill and crown drills.
• You can lay foam block materials on cement or special glue. Aerated concrete is mounted only on glue.
• Stop work on the construction of the house if necessary. Put the object for the winter. In the foam concrete walls, during this time there will be nothing, but the aerated concrete should be covered with a waterproof film.
• Follow the hold of fasteners on both materials. It is advisable to use special self-tapping screws, anchors and hardware.
• For the facing of such block facades you need to use special plasters, lining, siding, stone and other similar materials. There is no serious restrictions.
• Sometimes you do not need to warm up at home from porous blocks. If it is necessary, you need to contact the insulation. It is recommended to turn to basalt cotton.
• Not every plaster is suitable for finishing such block reasons. For foam blocks and gasoblocks, it is necessary to acquire the compositions that will support their vapor permeability.

Strength characteristics. Aerated concrete blocks are less dense (200-600 kg / cube), rather than foam concrete (300-1600 kg / cubic meters). Despite this, foam concrete is inferior to a gas concrete, since its structure is inhomogeneous.

Frost resistance. Autoclave aerated concrete blocks are more frost-resistant and vapor-permeable, rather than other similar materials.

Features of application. Cheat foam concrete is used in low-rise construction. It is also used in the construction of monolithic buildings (it is used as an additional insulated layer). The delicate materials are used as the main structural and thermal insulation materials. Of these build houses of the most different complexity.

• Production. Pour into low-quality foam concrete is much easier than on a bad aerated concrete. This is due to the fact that the first is often manufactured in handicraft conditions, and the process of creating aerated concrete materials is more high-tech and more often in factory conditions.
• Cost. The price is the most obvious difference between foam blocks and gas blocks. The latter will cost more, since foam concrete blocks are made from cheap raw materials.
• Soundproofing. Foam concrete blocks have better sound insulation characteristics, rather than aerated concrete options.
• Life time. Foam concrete on average serves no more than 35 years, and aerated concrete - more than 60 years. This is another important difference that needs to be considered by choosing the appropriate material.
• Shrinkage. The degree of shrinkage of foam blocks is greater than this parameter of gas-silicate materials. It is 2.4 (and aerated concrete - 0.6).

The key to a solid and comfortable structure is the correct selection of building materials. Ecologically clean materials that have such qualities as low sound conductivity and thermal conductivity are used to build walls of residential buildings. The most popular and modern of them are aerated concrete and foam concrete. In order to determine what the foam concrete is different from aerated concrete, it is necessary to consider their main characteristics and properties.

Unlike foam concrete, aerated concrete is produced at the factory, and it fully consists of mineral raw materials.

Aerated concrete: Basic properties and characteristics

Aerated concrete is one of the representatives of the cellular class of concrete. The main difference of aerated concrete is high strength and heat insulating characteristics. He is artificial stonewhich has a porous structure. It is due to the peres, this material has high thermal insulation.

Aerated concrete from lime, cement, sand and water. The gas formator is aluminum powder.

After the components are mixed, they are cut into blocks with the help of strings and send to heat treatment in the autoclave. The quality of aerated concrete depends on the components of raw materials, processing technology, compliance with production technologies, quality control.

Production of this material occurs in three stages:

1. Zam - cement, sand and lime are mixed with water, then add powder.
2. Forming - the resulting mass is poured into shape until it is frozen.
3. Baking - the formed blocks are placed in an autoclave, where they are treated with hot water vapor.

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Advantages and disadvantages of aerated concrete

Like many building materials, aerated concrete has its advantages and disadvantages. The main advantage in its manufacture is complete automation, that is, the human factor is minimized. In production, German equipment is used, which gives a guarantee of high quality goods. This is an environmentally friendly material that is not subjected to rotting and aging.

Aerated concrete has a very good geometry: clear sizes, smooth shapes, 3 mm seams. It can be used to erect bearing walls, which indicates the high strength of the material. With high strength, aerated concrete has a rather small weight, which makes it possible to abandon the lifting mechanisms. Such a production technology takes a little time, therefore it is considered rapid.

The disadvantages of gasoblocks include high water permeability and fragility. If at the construction site high humidity, then gas blocks are not recommended. Although this compression material can make heavy loads, it is very vulnerable in terms of shock loads.

If such a block drop, then it will split or a crack will appear on it. Therefore, aerated concrete is transported and only on euro pallets.

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Foam concrete and its main qualities

Foam concrete - an artificial porous material. It is made of sand, clay, cement and water. Porous structure is formed thanks to the foam. Foam blocks are considered new improved building materials. The main predominant difference of foam concrete from aerated concrete is water resistance. Since foam concrete has a porous structure, it is easy enough to handle and drill. Properties and characteristics of this material are very similar to the tree, so quite durable.

In thermal insulation, foam blocks are superior to silicate and ceramic bricks. That is, the thickness of the walls erected from foam concrete is much less brick. The low density of the blocks reduces the mass of the house of the house, so the burden will go to the foundation less, which will make it lightweight.

Due to the high level of thermal insulation, you can save on air conditioning and heating. Foam block has high sanitary and ecological indicators and is not subjected to rotting and burning. The difference in the characteristics of foam concrete from aerated concrete is caused and production technology. Production of foam concrete occurs as follows:

1. Sandsheart cement mortarwhich must be fastened with a foaming agent.
2. The solution is poured into the form.
3. After 28 days, the solution is gaining full strength due to the atmospheric drying method.

The porous foam concrete structure gives him the opportunity to absorb sounds. This is especially related to low noise frequencies. Foam concrete plated construction concrete in high-rise buildings.

Over time, foam concrete only improves its qualities, as there is a long internal maturation of the material.

It is breathable material that is able to absorb and give moisture, since this process of frozen occurs without an autoclave, and chemical processes can make foam concrete toxic. It is less durable than aerated concrete, and it cannot be used as bearing walls.

Gas blocks are produced only at large enterprises having a powerful electrical network. Focoblocks can be made using portable equipment. Due to the shaped fill, foam blocks are inferior to gas blocks. Gasoblock absorbs a large number of Water, so its frost resistance is reduced.

However, the buildings erected from this material are exploited only with the application of a protective coating on the outer part of the walls. Aerated concrete is more suitable for household buildings. Due to the differences in the composition of the materials differ in color: foam block has a grayish color.

After examining the characteristics, it is possible to determine what a foam concrete is different. Each materials have advantages and disadvantages, however, if the manufacturer complies with all quality conditions, both material can be applied in construction.

Cellic concrete generated by the following circumstances: First, for low-rise buildings, the strength, density and complexity of bricks and the more reinforced concrete is definitely redundant, and heat and sound-insulating properties are also definitely insufficient. Secondly, any famous methods Wood processing guarantee durability and fire resistance wooden buildings More than 30 years only in particularly favorable operating conditions. Therefore, attempts to bring the properties of concrete to the tree by creating voids or inhomogeneities in it were taken back in the first half of the XIX century, and at present the types of cellular concrete numbers are more than 10. The most popular and promising foamed concretes are most popular, but it is not easy to work with them. .

In Internet sources on the question: what is better, foam concrete or aerated concrete, the confusion is unimaginable, And in some cases clearly malicious. This is especially sinning by the construction sites of some countries of the neighboring countries. What is there is an egg, and that chicken is difficult to understand, but the characteristic situation is as follows: there is, let's say, the site where a comparative analysis of the other material is sufficiently objectively. But! The properties of foam concrete is attributed to a gas concrete, and vice versa. Those., If "foam" and "gas" to change places, everything will be true.

Next to the text, contextual advertising and links to suppliers are discharged. Go through them - they call their products correctly. Suddenly, the unfair buyer, guided by read, will order and pay, it will bring a completely different material on the platform. And, as they say, no edge: Suppliers with publications do not respond with each other, and you can still disappear on advertisers. Therefore, it is imperative to understand which of these two varieties of cellular concrete for construction is urgently needed.

Note: From other types of cellular concrete, we will further touch some more polystyrene foam; It is not that they lie about him, but something is substantially silent. And with a ceramzitobetone, arbolite, fibrobetones, etc., serious misunderstandings seem to be looking for.

Where to confusion?

Sources that have the power of the law, authoritative or at least applying to objectivity, from SNIPs and polytechnic dictionaries (construction, intelligent, encyclopedic), to Wikipedia, give a clearly visible criterion for the differences of foam concrete from aerated concrete. In the first pores through, winding, incorrect form; In the second - rounded closed, see fig. But within each structure, the difference in properties and quality material is possible greater than that of different structures. Simply: a good foam concrete can be better suitable in the case of aerated concrete. And a significant moment: the initial characteristics of both of these materials are varied differently and manifest themselves during operation, see below.

Why, we still see. In the meantime, it is simply necessary to explain, about the discrepancies of which scale are speech. Otherwise, it is impossible to objectively appreciate the pros and cons of foam and aerated concrete: for dry numbers in tables lies a lot, about which, actually there is this article.

For example: about the situation with real estate in Spain, you may have heard. There, according to the state program, the rescue of unlucky developers from bankruptcy is put up for trading somewhere 800 thousand new (!) Individual residential house-building. Prices are amazed. Here, let's say, the wonderful resort area of \u200b\u200bCosta Calida. To Granada with her Alhambra and Sierra Nevada ski delights to serve. And - the villa is sold at 100 squares of residential at the 2nd beach line (3-10 minutes on foot to the sea). Architecture - NOVOANDALUZSKA, there is a swimming pool. The price of this paradise is 200,000 euros, 2,000 euros per square. On the standings, it is not at cost, but for how much will take.

Why? We look at the specification: construction material - a gas-block of a European standard. What is this erectaco? We are looking for, with difficulty, but we find. And, clearly! EvroTA car is a surrogate aerated concrete (see further). Correct the dates: the eurotacomute in this structure until the end of its estimated period of operation 20 years left 12. Who will give me at least the Russian for the house, which is guaranteed to dwell on less than 15 years? Does it take for rent for a porn studio or a brothel, but under a million institutions of such a sewing it and Spain is too many.

But an example of another kind. In the zero-tenth years, a thorough revision of the Farmeto concrete buildings of the USSR of the 30s - 50s was carried out. It turned out, 95% of the buildings scored twice-triply strength (!); Other their characteristics did not deteriorate. These buildings are recognized as suitable for operation after cosmetic repair; Based on the current state, the re-audit was assigned in 80 years. 5% dilated due to violations of the rules for the construction of work during construction. Considering that under Stalin in construction, the forced labor of the unskilled labor force (zekov) was widely used, it must be recognized that the then foam concrete ended the gross violation of construction technology, except for completely unacceptable.

We are looking for again why so. The answer is easier: the main mass of the material is a portland cement with quartz sand; The rebel - natural protein (more about it below). This is such a Costa Costa comes out.

Brands

Foam and aerated concrete is manufactured / manufactured by the following brands; The numbers mean the massive density of the ready-to-use material:

1. Thermal insulation, not capable of carrying a load - D200-D400 for foam concrete and D200-D300 for aerated concrete;
2. Heat-insulating-structural, from which partitions can be put and enclosing structures - D400-D800;
3. Construction, for the construction of carrying construction structures - D900-D1200.

Note: This shows that the first 2 groups of brands and partially 3rd lighter than water.

Production

To understand the abovely incomprehensible situation described above, you must first figure out what the production of foam concrete from aerated concrete is distinguished. Key points here:

• The method of creating voids in the material; Simply - foaming.
• For aerated concrete - conditions for exposure to frozen.
• The composition and properties of the main (carrier) material.
• Method of forming construction modules.

Foaming

It is the way the formation of emptiness is the main difference in foam concrete from aerated concrete. Foam concrete is obtained by introducing into water for the kneading organic foaming. They are, firstly, from the animal protein: the first foam concrete samples were obtained by adding to the cement-sandy solution of bovine blood. Secondly, on the basis of saponins - substances that are stronger than soap, but with a neutral chemical reaction. Saponins were first obtained from the plants of the family of the bootheld (soap root, etc.), but now they are almost completely ousted by synthetic, which is much cheaper than natural extracts.

Protein foaming devices provide practical unlimited durability of the construction - recall the vintage buildings, in the masonry solution for which eggs were added. But with the current position with the animal protein in the world, protein foaming agents are very expensive and foam concrete on sale almost no. Saponins guarantee relative stability of masonry characteristics for 40-70 years, and then its strength, moisture resistance and vapor permeability are as stable and fast enough. The introduction of those and other foaming in the solution is possible directly on the site, i.e. Foam concrete can be monolithic. Saponic foam low or secondary, therefore the variation of the initial parameters of foam concrete is quite large.

The aerated concrete is mixed on a strongly alkaline solution (narrowing lime is usually used) with adding aluminum powder. At the same time, hydrogen is distinguished, creating together with the bulk of a high-time foam, due to which the initial characteristics of the material are kept with high accuracy. The technological process is organized in such a way that the volume concentration of hydrogen in the air is nowhere and never exceeds the explosive value of 4%. Due to the high diffusion ability of hydrogen, it almost completely disappears before the mass of the mass, and its subsequent remnants are harmless and safe. But powdered aluminum and caustic alkalis - carcinogens and, recent, toxins, high hazard groups. The safety of production processes with them is possible to ensure, only laying it constructively into technological equipment; PPE can be only an addition.

Excerpt

A comparison of various brands of aerated concrete must also be carried out with regard to the method of excerpts to the technological clarification. The ripening of the foam mass of the aerated concrete is carried out or heated without excessive external pressure (bassoclave aerated concrete) or in the pressure autoclave (autoclave gas concrete). On the source characteristics, they may not be particularly different, but more expensive autoclave aerated concrete gives the service life of the buildings from it over 70 years, and a bastoclave aerated concrete - up to 40-50 years. Frost resistance (number of cycles of complete freezing / thawing before the start of cracking) autoclaved aerated concrete ranges from 80-100; Disavavoclave - up to 30.

The bulk

The main thing is to pay attention to if you intend - the composition of its bulk. Best results Following operation, mixtures of portland cement and quartz sand are shown; Further, if not specifically stipulated, we will consider cement-sand foam concrete. However, the sale of a huge amount of foam and aerated concrete with a binder of the limestone and the filler from the ash of CHP, the ground industrial slag, and the like. Production waste, this is T. Naz. Surrogate concretes. Their durability and frost resistance is 1.5-2 times less than that of cement-sand foamed concrete of the same brand, but other initial qualities may not be worse.

Surrogate foamed concretes can be white, dazzling-sparkling, like raffin sugar, even in coffee. But the foamed mixture of Portland cement with quartz sand can also be white as writing paper. Here, the selection criterion is the specification of the material or simply marking on the package. Manufacturers of cement-sand foam and aerated concipes do not miss the case to indicate the advantage of their products, especially in conditions of having a tough competition, and suppliers of surrogates about the origin of their goods are prudently silent.

Blocks and monoliths

Independent developers are used for foam blocks or gas blocks. Aerated concrete is made only in production conditions and is manufactured by standard modules. To knead the foam concrete on the site, it requires expensive purchased equipment, but still the variation of the material characteristics is more permissible. Therefore, the monolithic foam concrete on the spot is made only low grades; Basically for insulation and, rarely, enclosing structures. On the methods of production of foam and gasoblocks give a picture of the video:

Video: Production of foam concrete blocks

Video: Production of aerated concrete blocks

Note: Visual video materials. Depending on the manufacturing equipment used, those and others technological processes may differ significantly.

The dimensions of foam and gas blocks are kept in the module 300 mm; Standard - 300x300x600 mm. The low-brand aerated concrete for thermal insulation is also available with plates in modules 150 and 125 mm, for example. 1200x600x150 mm or 1250x500x125 mm.

Aerated concrete and foam concrete is a usual steel tool with a common steel tool, but the first crumbles weakly and only from shock loads, and the second is strong and, except for the drums, from uneven loads. Therefore, foam blocks are formed exclusively in bulk in the form. Saponic foam creates significant pressure, formulates, so that the accuracy of the manufacture of foam blocks is small: about 1% of the acc. size. Those., The transverse dimensions of the standard structural foam block can "walk" by 3 mm, and the length is already at 6.

Gas blocks are shipped for sale cast and cutting. Highly prone hydrogen foam almost does not press the form: the rate of diffusion of hydrogen with an increase in its partial pressure grows very quickly, and excess gas simply disappears. Dimensions of cast gasoblocks can be kept with an accuracy of +/- 1 mm. Rezanny gas blocks are generally fantastic for building materials accuracy +/- 0.5 mm, but 5-15% are more expensive, because Wear cutting tool and waste money is worth.

Jumpers, locks and loads

Due to the best ability of gas-blocks to carry shock and uneven loads together with higher accuracy of manufacture, firstly, give the locking of window jumpers and door openings In the gas-block walls from 150 mm (pos. 1 in Fig.), whereas for foam blocks are required to launch the same structural elements from 300 mm. Secondly, gas blocks are manufactured with shaped locks, pos. 2, ensuring greater strength and smaller heat loss building.

Then, to the walls of foam concrete can be mounted with steel fasteners only crates under the trim, with the embedding of dowels under hardware from 150 mm; Under the concentrated loads you need to put through anchors. And a hook in a dowel depth from 120 mm in a gas-concrete wall holds weight up to 15-25 kg, depending on the material brand. Those. To hang on the foam concrete wall, say, TV, you will need to open the finish in the adjacent room. With aerated concrete, there are no problems, even on the contrary: do not need a perforator and bug along concrete, enough hand drove without a vibrator and a conventional spiral drill. Acc., And garbage will be less.

Foam concrete and aerated concrete characteristics

The most important performance characteristics of structural cellular concrete, red brick and construction wood are summarized in Table. Some bewilderment can cause the required wall thickness, but it is calculated, first, for the wall naked, without internal and outdoor decoration, trim and insulation for -25 outside. Secondly, it takes into account so that the homeowner does not pay for the overrun of energy at an increased rate. And to summarize, we will pass more by other essential rows.

Cost and shrinkage

Actual cost of 1 square meter. M walls change, but their ratio remains approximately the same. However, there may be a question: how so, foam concrete almost a quarter is cheaper than aerated concrete, and the wall is more expensive? In addition to the thickness of the wall, it plays the role of a masonry seam. Gas blocks are placed only on a special glue. A high-quality adhesive for aerated concrete is 2-3 times more expensive than a conventional masonry solution, but the latter is 3-5 times more in volume (see the thickness of the seam).

Focoblocks can be laid like on the glue, but foam concrete disintegrates moisture, see below, and the fresh seam dries before the subsequent block will be laid. In addition, the accuracy of the manufacture of foam blocks is almost equal to the thickness of the adhesive seam, which for considerations of strength is unacceptable.

Note: It is not necessary to estimate the estimated cost of construction at the price of the wall of the wall. The total cost of the construction depends on many factors, and, depending on the local conditions, it may be comparable for the price or even cheaper than stone.

Next, a small dry (own) shrinkage of aerated concrete occurs quickly, within a month, and you can start the finish. Foam concrete is settled for the year, and technics are also worth the money. An individual developer is at least for renting temporary housing. Finally, due to the chipping of foam concrete under the uneven load, the carrying capacity of the foundation of the foam concrete house should be higher, and its shrinkage is less than under a gas concrete, i.e. And the foundation for foam concrete will cost more.

Humidity

Operational humidity means - how much water vapor material is able to "pump" from the air. 5% or 15%, there is no special difference; eg For air-dry businesswood, humidity is normalized in 20%. But moisture absorption rate is quite another matter. It depends on the physical mechanism of moisture absorption: capillary or diffusion. The first is characteristic of foam concrete and wood, the second is for an autoclave aerated concrete, and the non-autoclave aerated concrete absorbs moisture and so, and so. In turn, the speed of capillary moisture absorption is very dependent on the size of the transverse section of the pores in the material.

We do a trace. Experience: Take pieces of foam, autoclave and non-autoclave aerated concrete and tree of the same size, form and density, i.e. Weight. Let them swim in water tanks. Foam concrete in his eyes is soaked with water and will pick up. We will continue experience, pouring water as they evaporate. The non-autoclave aerated concrete will swim 2 weeks - 3 months, but the autoclave will remain afloat and then when the area will go to the bottom. Remember: aerated concrete reaches slowly and unimportant.

Parp permeability

Here we compare foamed concrete with wood. Considering that wooden structures No ends in the air does not happen, it turns out that the foam and aerated concrete "breathe" almost like a tree. And if we remember how the autoclave aerated concave point is slowly gaining moisture, then we come to the conclusion that for the bath he is hardly better than the traditional tree. Moreover, its thermal conductivity is lower: the bath warms faster.

What is not in the table

Overview of the properties of aerated concrete completed some additional parameters:

• Candy resistance - F35, i.e. Mechanical characteristics are saved to -35 Celsius.
• Fireproof - class A1, withstands without loss of strength heating for 20 minutes to 300 degrees.
• Allowable axial load of structural brands - class B2.5; Permissible erection of walls up to 20 m high.
• Absolutely unattractive, in contrast to polystyrene foamball (see below) for rodents and insects.

On polystyolistrolbetone

Foam polystyrene foam, or foamflast concrete, does not apply to the number of foamed concrete, but it is necessary to linger on it. Polyfoamobeton has recently advertised recently, and the formal reason for this seems to be: it is cheaper than aerated concrete and for most parameters it is not inferior to it. But what the enthusiasts of foam plasticism are not told: his firefightness zero, Heating is unacceptable. In the flame, the polystyrene foamball is collapsed catastrophically, the crucible flies into pieces, and it highlights, as well as the foam, a large amount of extremely toxic gases.

Outcome (and what not necessary)

What is not necessary - this is noticed foamed concrete yourself. With the components of the aerated concrete at home is simply dangerous for health, see above. And as to the foam concrete, then on YouTube plots about him on the topic "do it yourself" abound. But you will be shown or work dear and requiring qualified service of the purchase of a purchase installation, or an embarrassment of something like a basin or a balance. Is it possible to get cubes and dozens of cubes qualitative material For construction - a rhetorical question. To knead the components from purchased into retail to insulate overlaps? "Spotted" heat conduction insulation is worse than bad homogeneous, because Causes mock and mold. And at the price, it will be comparable to the insulation of an eco-art having a mass of its own advantages, but devoid of flaws of foam concrete.

Before the construction of the dwelling, you need to ask yourself a question, from which material the house will be built. Many factors are taken into account: climatic conditions, material capabilities, purpose of construction. The fortress and comfort of the structure depends on the material. It is necessary to take into account that the walls of the houses are fireproof, environmentally friendly, protected from noise. Very often the question is, to acquire: foam concrete or aerated concrete. It would seem that there is no special difference, but let's consider carefully, if it is. Maybe some of these materials priority and why.

Advantages of aerated concrete

When choosing between aerated concrete, foam concrete, brick or wood, it is necessary to consider the benefits of each of the materials. Speaking of aerated concrete, it is worth noting that to build a house from this product it is not necessary to possess construction skills. Buildings from aerated concrete easily erect, finish, carry out repairs and redevelopment. Because of this, aerated concrete is widely used in modern construction. Aerated concrete from lime, sand and cement is made. This is an artificially created building material, with a porous structure, more than eighty percent filled with air and gas. Thanks to such peculiarities, aerated concrete has a low thermal conductivity, low weight, ease of use and processing.

Among the main advantages of aerated concrete, the following can be distinguished:

• low cost - aerated concrete is considered one of the most inexpensive materials for the construction of houses;
• excellent thermal insulation abilities - the material perfectly retains heat, which makes it possible to reduce the cost of heating in winter, and do not feel high in the summer;
• easy to use - with aerated concrete easy to work, even a newcomer can carry out a laying of aerated concrete, it is large enough, easy, which allows you to transport, lay, cut and grind the surface;
• parry permeability - the structure of the blocks provides a revolution of steam from the room outward;
• the use of aerated concrete allows you to build a building into one layer without additional insulation;
• very quickly dries, no coating is recommended, which will block air access;
• safe for health, non-toxic, due to the fact that the basis of the manufacture only natural materials;
• helps build a good quality home.

Aerated concrete allows you to build:

• partitions;
• external walls;
• internal bearing walls;
• walls for reinforcement.

The main characteristics of aerated concrete:

• high thermal conductivity;
• density;
• density-dependent strength;
• refractory;
• vapor permeability;
• soundproofing;
• big sizes.

Houses from aerated concrete are distinguished by strength, are not subjected to rodent attacks, they have high thermal insulation.

Benefits of foam concrete

Foam concrete is a material that serves to make houses. The main requirements exhibited for modern products for building houses are:

• low value of material;
• long service life;
• high heat insulation.

Foam concrete is perfect for these requirements. The material is relatively inexpensive, the service life of the blocks is more than eighty years, the material is able to withstand even the most severe winters, while it is capable of holding heat.

Foam concrete refers to a group of cellular concrete with high thermal insulation. The block is manufactured by mixing cement mortar, sand, water and aluminum powder. It is powder that reaches the reaction with other components and gives the composition a foam view. In the middle of the material it turns out a large amount of air, which gives such high thermal insulation capacity blocks.

Speaking about the advantages of foam concrete, it is worth noting the following benefits of raw materials:

• the ability to pass the air, which allows you to maintain the level of humidity in the room;
• material is relatively low weight, which reduces the load on the foundation;
• due to the large size of the block, the dwelling construction is carried out in a shorter time;
• when the walls are built, you can use a substitute for a glue solution, which will cost cheaper;
• apply the finishing material on the walls of foam concrete is much easier than on the surface of other materials;
• foamclock Environmentally friendly material is fully safe for the health of resident family members;
• it has a refractory ability, in the event of a fire, it does not focus.

As can be seen from the described advantages of the product, foam concrete is ideal for the construction of housing and is a competitor to other materials for construction.

Foobeton composition

Foam concrete can be purchased in a construction store or make it yourself. To do this, learn the composition of the product. As already mentioned, at the end of work, the unit is obtained, in its composition and appearance resembling a sponge for washing dishes. The number of air compiles depends on the density of the material and varies depending on this. The composition of foam concrete is regulated by the document, it is he who regulates the quantitative and high-quality filling of the block. The requirements for the material are:

• the use of cement of a special brand, which contains impurities;
• use of water of a certain amount and quality;
• sand of suitable quality, the content of the quartz part of which should not exceed seventy percent;
• the number of foaming in accordance with the product manufacturing recipe.

In foam concrete, there may be foaming agents of two options:

• natural;
• synthetic.

The use of a natural product allows you to get high quality blocks and environmentally friendly. Artificial foaming makes it possible to reduce the value of the material. Sometimes additional components are used, such as ash, fibrovolok.

There are also conventional standard foam blocks and reinforced. The latter are needed at high loads on the walls.

Composition of aerated concrete

Aerated concrete is an artificial material designed to build housing. It can be made external and interior walls. Due to its porous structure, the material does not have a greater load on the foundation. High thermal insulation abilities make this material widely demanded.

The type of aerated concrete classification depends on its purpose, form, manufacturing technology and composition:

• the method of processing material can be autoclave and non-autoclave;
• in terms of its purpose, the unit can be material for thermal insulation, for construction, and mixed - structural - heat-insulating;
• in the form of block-U-shaped straight and with grooves.

To make blocks you need to use:

• sand;
• cement;
• water;
• gypsum, aluminum;
• water.

As an additional component, it can be slag or ash. Depending on the additional impurities, the blocks are divided into such types:

• cement;
• slag;
• lime;
• ash;
• mixed.

Aerated concrete - porous and gip-like material. To prepare an autoclave unit, it is specially treated in autoclaves for hardening. Those blocks that frozen under natural conditions are called non-autoclave. In contrast to autoclave blocks, these are subject to mechanical influence to more, therefore, rationally use non-autoclave blocks at low loads.

The difference between foam concrete and aerated concrete

At first glance it may seem that there is no difference between foam concrete and aerated concrete. On the one hand, the first and second material are a product called cellular concrete. Thanks to the cells and contained there, the material becomes more valuable from the physical and technical side. Each of these types of concrete is made by the autoclave, artificial, or non-autoclave, natural, methods. The autoclave requires the use of special equipment for the hardening of raw materials, and the non-autoclastic reaches the condition in vivo. Between foam concrete and aerated concrete, a big difference manifested in such features:

• product composition;
• characteristics;
• operational abilities.

Disadvantages of foam concrete

Even possessing so much useful propertiesFoam concrete has its drawbacks that many do not know about. If you decide to build a house of foam concrete, examine the strengths and weaknesses of the material. Knowledge of minuses and disadvantages will help to eliminate them in time and navigate to after the construction ready project There were no unpleasant and unexpected consequences.

Among the disadvantages of the material, such:

• the composition is the basis of foam concrete lies aluminum powder, which reacts with other components, and although manufacturers argue that this composition is fully safe, it is better to spend thorough work on the surface finishing, although this will increase the cost of construction, but will be able to secure accommodation in the dwelling;
• products for connecting blocks - so that the blocks are well combined with each other and did not destroy the seams, it is recommended to use non-cement mortar, but a special adhesive base, the use of adhesive helps to increase the heat-insulating properties of the construction;
• the value of the materials for gluing blocks - the price of glue is much higher than the value of the cement mortar, it significantly increases the costs of construction, but also, on the other hand, makes the laying of blocks as high quality as possible;
• the composition of the unit is as the blocks include lime, gradually over time, it causes oxidation processes in reinforcement compounds of the house, over the years the strength of the wall is violated to avoid this, it is recommended to cover the reinforcement with an anti-corrosion coating, which also significantly affects the cost of building.

Disadvantages of aerated concrete

Aerated concrete, firmly entered the construction industry, is often used to build private dwellings. For the construction of the house does not require special knowledge or special technique. The structure of the blocks allows you to produce various manipulations with them. The material is fireproof and "breathable."

But even with such a large number of positive properties of the material, aerated concrete has many drawbacks, which should be taken into account when erecting a house:

• Increased moisture permeability and water absorption - this is due to the structure of blocks, the porous inner surface absorbs water and accumulates it if it does not bother about it at the construction stage, then the gradual accumulation of a large amount of moisture worsen the quality of the material and its properties.
• Insufficient thermal insulation - such a feature of the material appears after the blocks accumulate moisture, but if sufficient waterproofing was carried out, then the voids are filled with air and it provides high waterproofing. Also carried the material was not placed on a special glue, but on a cement solution, its thermal insulation properties will be reduced.
• High gas permeability allows the walls to breathe, but it happens only in the warm season, with negative temperatures and strong winds, the thermal protection of the aerated concrete is reduced.
• Insufficient block strength - due to insufficient material strength, it is necessary to use a special reinforcing layer, a support pillow. This reduces thermal protection, and special additional means Make construction more expensive.
• Low cold resistance - moisture that fell into the pores of the material leads to a decrease in cold-resistant qualities, this can be prevented by high-quality waterproofing.
• The appearance of cracks - blocks are not elastic enough, they are prone to faults, poorly tolerates the shrinkage of the foundation, can break as a result of this, a few years cracked. It does not cause the destruction of the house, but leads to a decrease in qualities.
• Poor quality plaster - plaster, laid on blocks collapsed over time.

Disadvantages of aerated concrete can be smoothed with proper use and enjoy a cozy and high-quality room. You can find a large number of proposals and explanations, how to eliminate the likely problems with products in the future.

Comparison of foam concrete and aerated concrete

Between foam concrete and aerated concrete there is a difference, not only in production technology, but also in specifications Materials. Consider these differences:

• Blocks differ in composition: for the manufacture of aerated concrete, lime, sand, cement and water are used, for foam concrete, cement, sand and foaming agent are needed.
• Materials differ in price - foam blocks are cheaper, do not require special adhesive to connect surfaces like gas blocks.
• Quality external view Materials are different - the proportion is better respected in aerated concrete blocks than foam blocks. As a result, styling is facilitated, there is no need to align the rows with the help of a solution.
• Materials differ in strength, aerated concrete is several times stronger.
• Because of the fact that the structure of pores in foam concrete has a closed form, the surface of foam concrete is worse than "breathing". On the other hand, it is better to keep warm.
• Foam concrete is more resistant to water and protect it with waterproofing is much easier than aerated concrete.

Make a choice in favor of some kind of material is not easy. Both concrete variants have a slight weight and do not overload the foundation. They have excellent heat and sound insulation compared to other construction materials. The large surface of the blocks allows you to build housing in a short time. Materials are not burning, they are not damaged by rodents, do not rot.

Answer the question that of them are better - not just, and not to get an unequivocal answer - in some cases it is preferable to use foam blocks, in other - gas blocks. It should take into account the climatic zone, weather conditions and many other objective factors.

If you have any questions about how to build a house of aerated concrete or from a similar material, see the video, there you will find answers to all the questions that arise and can make a decision that the material is better to use in exactly your case.