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Comparison of aerated concrete and foam concrete blocks. What is the difference between a foam block and a gas block

Herbs in the garden

The construction of a residential building is a special process that does not tolerate errors, especially in terms of durability and comfort. Especially in our latitudes, where temperature regime can fluctuate significantly, as well as weather conditions. Choice quality material in this case, it is an important mission, and one who knows what he is looking for can cope with it. Today we consider two materials widely used in modern housing construction - aerated concrete and foam concrete, compare them and assess each material according to several characteristics.

Comparison of materials

Foam concrete is essentially cement, sand and a foaming agent. All this is mixed, poured into molds and left alone until completely solidified. That is, the process can be carried out directly at the construction site.

Foam block and gas block - appearance

But aerated concrete requires a high temperature and a humid environment. It is composed of lime, cement, water and sand. Aluminum powder in this composition acts as a blowing agent. The resulting mixture is cut into blocks with strings and poured into an autoclave. There, under the influence of high pressure, the material acquires its final appearance and its best qualities - resistance to mechanical stress, durability, fire resistance and malleability to processing.

It turns out that both materials are lightweight concrete, only the method of obtaining air bubbles in them is different.

Both materials are manufactured according to the same GOST, which means they meet the same requirements. Their physical specifications almost repeat each other. But this does not mean the complete identity of aerated concrete and foam concrete.

Aerated concrete with its heat treatment has some advantages, but it is not necessary to claim that it is superior to foam concrete. Nevertheless, it is the quality of the cement and its density that determine the degree of quality and reliability of the product. The laying of these two materials is also different: aerated concrete blocks are placed on glue, and aerated concrete blocks on ordinary cement mortar. It is cheaper than glue, but practice shows that much more of it is required, and it is more difficult to work with it.

It turns out a curious thing - aerated concrete together with glue are more expensive than foam concrete with cement mortar, but at the same time, the cost is almost the same. In addition, the glue does not allow cold bridges to arise, which means that it will be easier to warm the interior, which will have a positive effect on cost savings.

Another difference between materials is the degree of accuracy in block sizes. Still, the dimensions are respected much more accurately at the factory than at the construction site. Therefore, aerated concrete is easier and more pleasant to lay.

Comparative table of characteristics of foam concrete and aerated concrete

Advantages and disadvantages

If we talk about the production of materials, then from the point of view of the complexity of the process, foam concrete looks preferable. For aerated concrete, it is necessary to build a workshop, conduct a powerful electrical network, a gas pipeline. The foam block is easy to make on portable equipment, which is easy to find - there are enough of their modifications on sale. Another thing is that a simplified production method often attracts illiterate manufacturers who do not pursue the accuracy of linear dimensions, compliance with the level of thermal conductivity, density and strength. You can avoid encountering low-quality products by finding a competent manufacturer who has all the necessary quality certificates in his hands and who periodically tests their products for compliance with the requirements of modern standards.

Blocks of aerated concrete and aerated concrete are easy to install, and due to their size, they save glue or cement mortar

Foam concrete can be toxic - since it is not autoclaved, chemical processes are used to create it. This also affects the strength of the product. With the same density index, the degree of strength of aerated concrete and foam concrete is different. Take, for example, a density of 500 units. Aerated concrete with this indicator copes well with loads, while foam concrete cannot boast of high strength and is used only as a heater.

Water absorption and frost resistance - two important indicator for the material.

The gas block is able to absorb more water than the foam block, but at the same time it is less resistant to low temperatures. True, when erecting residential buildings, their outer side is covered with a protective layer in the form of plaster, tiles, siding and other materials, which means that the gas block will be protected from water.

Video: characteristics of gas and foam blocks

Home construction

Houses built with these materials will cost less than brick houses. And there are reasons for this. Firstly, aerated concrete and foam concrete are lightweight materials, which does not oblige the builder to build a massive foundation. A light version of it is enough. Secondly, the heat and sound insulation of both materials is at the same level, which allows you to subsequently save money. And not only in the future. During the construction process, walls can be erected with a lesser thickness, which means savings on materials. Thirdly, the savings in materials also apply to glue with cement, which, with large volumes of blocks, will not be required so much.

Houses made of foam blocks and gas blocks are very reliable, because these materials are durable and non-combustible. They do not rot and are not susceptible to attacks by rodents and insect pests.

If you will be laying intra-house structures, such walls will be easy to gouge. And, finally, the most important thing is that these walls "breathe", which creates comfortable conditions living in the house.

Porous building materials are gaining popularity. They are durable and lightweight, used for the construction of private houses, country cottages, utility and commercial buildings, garages. For this, foam concrete and aerated concrete are more often used, but you need to know what is the difference between these two concretes with similar technical characteristics.

Foam concrete and aerated concrete are building materials that are gaining popularity because they have sufficient strength and low thermal conductivity. The porous structure reduces the density and mass of the blocks made from them. Air-filled cells account for the thermal insulation. Despite the similarity of characteristics, the scope of application of these formulations varies.

Strength, low specific gravity foam concrete increases the service life of this material. Therefore, it is used for residential buildings - houses, cottages, backyards, baths. The only limitation in the use of foam concrete is that buildings erected from it should not be higher than three floors. It is used when the device:

  • load-bearing walls of buildings and structures;
  • interior walls for planning premises;
  • fences, fencing of territories;
  • floors with steel bar reinforcement.

The uniformity of the structure of aerated concrete explains one of its main features - increased resistance to cracking and shrinkage of structures created from it. This allows it to be used for the construction of residential buildings, industrial, public and commercial facilities. It is used for:

  • interior partitions;
  • filling spans in frame buildings;
  • load-bearing structures and walls;
  • multi-storey structures and buildings.

Production technology and composition

To understand how aerated concrete differs from foam concrete, you need to understand the technologies by which these building materials are made. During the production process, an internal porous structure is formed at the calculated density and strength - characteristics that determine the main advantages. In this case, components that are harmless to health are used, which significantly expands the scope of application of such concretes.

Foam concrete production

Foam concrete is produced using a simplified technology that is available even at home. The production components are: cement, water, sand, slag and other fillers. The main substance, which provides the porosity of the material structure, is sulphite liquor. For foam concrete you will need: Portland cement 36%, sand 47%, 16% water. Foaming additives and fibers to increase strength do not exceed 1%. Production stages:

  1. All ingredients are thoroughly mixed in dry form, after which a small volume of water is added to them.
  2. A foaming component is added - sulphite lye. Stirring continues until a homogeneous structure is achieved. In the course of chemical reactions, gas is released, as a result of which the material receives a porous structure.
  3. The prepared mortar is placed into the prepared formwork in the form of the required blocks or structures. Foam concrete sets in 10 hours, the minimum time is 5 hours. After being removed from the formwork, the blocks are placed outdoors or in a dry room for final drying.
  4. The necessary strength, allowing the use of this material, is achieved in 14-21 days.

It is important to pay attention to the quality of the formwork so that the dimensions and surface of the blocks or structural elements meet the technical requirements.

Aerated concrete production

Aerated concrete is manufactured in industrial plants with special equipment. The main components are cement, quartz sand and lime, water. The foaming component is aluminum paste. The composition is similar to that used for the preparation of foam concrete. A pure substance poses an environmental hazard, but during the production process it is completely neutralized. Stages of aerated concrete production:

  1. The components are poured into the concrete mixer in proportions and filled with water, kneaded to a homogeneous consistency, according to a previously developed technological map. The added aluminum paste, sometimes powder, reacts with the solution, saturates it with gas, creating a cellular structure and at the same time neutralizing.
  2. The resulting solution is poured into previously prepared forms. It should be borne in mind that as a result of the reaction of aluminum compounds, its volume will increase during setting.
  3. The frozen monolith is removed from the molds and cut into blocks, slabs, lintels, and other elements of the required dimensions.
  4. To increase the strength and waterproofing characteristics, the resulting products are processed in autoclaves under steam at 12 bar or high temperature in electric furnaces.

The resulting aerated concrete and materials from it have increased strength, correct geometry.

Comparison of characteristics

The main components and production technologies are very similar, but the technical characteristics of these materials differ. The difference in the properties of foam concrete from aerated concrete is explained by their structure and appearance.

Foam concrete is structured with relatively large cells with low moisture absorption, good sound and heat insulation. The surface is relatively smooth, the color is gray.

Aerated concrete has smaller cells, as a result of the formation of gas in the thickness of the solution, microcracks may appear on the surface. They have good water and vapor permeability, thermal insulation characteristics... The rough white surface requires additional finishing.

The density of aerated concrete is in the range from 400 to 800, foam concrete - higher density from 400 to 1200 kg / m³. Differences in other technical characteristics:

  • Aerated concrete has more stable thermal conductivity, since it has a uniform cellular structure. The pores in foam concrete have a diameter of 1-3 mm, they are distributed unevenly, therefore the thermal conductivity of this material is unstable.
  • The strength of treated aerated concrete is significantly higher than that of aerated concrete.
  • Industrial production allows to obtain aerated concrete blocks with precise geometry, manufactured privately foam concrete blocks do not possess such properties.
  • The plaster is applied to both materials, but the correct geometry of the aerated concrete elements allows you to save money. Also, aerated concrete has better adhesion.
  • Aerated concrete has better frost resistance, like autoclaved or heat-treated concrete. This indicator for foam concrete reaches 35 freezing and thawing cycles, and aerated concrete with hydrophobic fillers can withstand up to 75 cycles.

If we compare the indicators of foam concrete and aerated concrete, then aerated concrete has the best indicators, allowing its use for the construction of various buildings and structures, including multi-storey ones.

Advantages and disadvantages

Aerated concrete and foam concrete have their own advantages and disadvantages. What is better to use in a particular situation can be determined only after analyzing the properties of these materials. Among the advantages of foam concrete are:

  • Relatively low thermal conductivity.
  • Relatively low density, which allows you to save on the foundation, lay out the walls yourself.
  • High performance of sound insulation.
  • The optimal size of blocks and other structural elements accelerates construction.
  • Easy adjustment of elements with a simple hacksaw.
  • Environmental friendliness can be used for the construction of any residential premises.
  • Long-term operation even in difficult conditions, corrosion resistance.

But this material also has disadvantages:

  • The porosity of the structure imparts fragility, especially at the edges of structures, the strength of foam concrete is unstable.
  • Unattractive outer surface, which is better to plaster.
  • When erecting structures made of foam concrete, reinforcement at the joints of the elements is necessary.
  • With handicraft production, the quality of the material decreases.
  • The use of this material requires careful calculations of the strength of the structure.
  • Foam blocks do not have the correct geometry as they are not manufactured commercially.

The advantages of aerated concrete include the following characteristics:

  • Reduced density with increased strength.
  • Increased moisture resistance of the autoclave block.
  • Fire resistance.
  • Frost resistance.
  • Resistant to biological influences and corrosion.
  • Durability allows the buildings to be used for more than 100 years.
  • Excellent heat and sound insulation performance.
  • Ease of processing.
  • Savings, since aerated concrete requires a minimum amount of cement.
  • Environmental Safety.
  • Correct geometry since structural elements are manufactured in production.

With all the advantages of the material, it also has disadvantages:

  • Increased hygroscopicity requires additional plastering.
  • Care must be taken when calculating loads as blocks can crack.
  • The cost of this material is higher than that of foam concrete.

Outcomes

When choosing aerated concrete or aerated concrete, you need to weigh what is best for construction. These materials have a lot in common, but there are differences that prevent them from being applied in the same way. Obviously, aerated concrete has the best strength indicators; in other characteristics, they are similar. Therefore, specific calculations, features and work budget are taken into account, as a result of which a decision is made.

Building blocks made of aerated concrete subspecies - aerated and aerated concrete - have been successfully competing with such construction monsters as concrete, brick and wood for several decades. It is thanks to its physical and operational characteristics, which consist of both advantages and disadvantages, that large companies and private developers have not yet finally decided what is better for foam or aerated concrete, although they are in many ways similar.

The strength of these masonry products is inferior to those of brick and concrete, but they have no equal in terms of thermal conductivity, and for low-rise construction, choosing foam concrete or aerated concrete is preferable and more economical than building a house from solid stone materials. An important role in the choice of cellular concrete is played by the small weight of block products, which makes it possible to facilitate the construction of the foundation - both foam concrete and aerated concrete have a porous structure. The combination of cheapness, efficiency, high energy saving and sufficient strength - these are the whales on which the popularity of such modern building materials as aerated concrete or foam blocks is based.

Aerated concrete - properties and qualities

Load-bearing and non-load-bearing walls, internal partitions and auxiliary architectural structures are erected from aerated concrete blocks, panels and slabs. The mortar for the manufacture of building elements is prepared from high grade Portland cement (not lower than M 300), lime, refined fine sand, blast furnace or coal slag, and other industrial waste.


The gas-forming substance is aluminum powder, which, when reacted with lime, when water is added, begins to foam, releasing hydrogen. Bubbles of hydrogen do not have time to completely leave the solution, since the reaction occurs under the influence of high temperature, and the remaining hydrogen forms a cellular structure of aerated concrete, suitable for construction.

To better understand the differences between foam and aerated concrete, you need to familiarize yourself with the technology of their manufacture. It is impossible to manufacture high-quality gas blocks by handicraft due to certain difficult conditions occurring during the molding of blocks in an autoclave.

The advantages of aerated concrete:


  1. Environmental friendliness of materials for the production of building elements from aerated concrete;
  2. Easy, affordable and simple machining due to the low density coefficient - gas blocks and slabs can be sawed with an ordinary hacksaw, drilled, chiselled, etc .;
  3. The strength factor allows comparing aerated concrete with low-quality concrete, therefore architects recommend building low-rise buildings from gas blocks - the strength is sufficient, and the heat capacity is much higher than that of bricks or other artificial stone... Moreover, an autoclaved aerated concrete element is much stronger than a good foam concrete block;
  4. The small weight of the products is a consequence of the low density and a lot of air pores, which ensure the heat capacity of the material. Aerated concrete is seven times lighter than bricks, so transportation, laying and storage are much easier, and the ability to lighten the construction of the foundation finally outweighs the choice in favor of gas bricks;
  5. Heat, noise and waterproofing. Energy saving is the most influential property of aerated concrete when choosing the main material for building a house, and the difference between it and concrete (brick, natural stone) is quite significant. High thermal insulation is achieved by the presence of air pores and the presence of natural substances in the molding mixture. The same parameters enhance the properties of sound insulation, and low moisture permeability is ensured by the presence of aluminum in the blocks.

Disadvantages:


Porosity is a plus, but in certain cases it can play a bad role, for example:

  1. Moisture ingress in the form of condensation from the atmosphere. Condensation quickly accumulates in the pores, spreading along the walls. Therefore, additional waterproofing is indispensable in regions with a high level of average annual precipitation. And therefore, any construction site made of gas blocks requires waterproofing of facades, and sometimes protection of internal walls from excess moisture. Compared to foam concrete, pores in aerated concrete are less isolated from each other and interact more with any liquids;
  2. Porosity is a direct path to the appearance of microcracks. This can happen with subtle seasonal soil movements, when the house shrinks, or when the foundation is washed away by groundwater.

Optimal use of gas-block structures and structures - in low-rise construction when erecting internal load-bearing and curtain walls, interior partitions, complex architectural elements (arches, niches), as well as strengthening the thermal insulation of premises. Block products are used for walls and partitions, panel products are used to create a heat-insulating layer between walls and partitions and directly in the room.

Foam concrete - properties and qualities

As a product of modern building technologies, both aerated concrete and aerated concrete are very similar to each other and are subtypes of lightweight cellular concrete. The composition of the solutions is very similar, but the methods for processing the working mixture are quite different. The main difference is that aerated concrete is produced using a mechanical process (in a pressure setting using a foam generator), aerated concrete is produced by an autoclave chemical method.


Benefits of foam concrete:

  1. With an average strength index, foam concrete, working in permissible SNiP conditions, retains the specified properties for a very long time. Very often builders call foam blocks eternal;
  2. High rates of energy saving: holding heat well, foam blocks can accumulate it. That is, in winter a house made of foam concrete will be warm, in summer it will be moderately cool. Foam block walls are able to pass air well - "breathe" like walls made of logs or timber, thanks to this, a comfortable microclimate with an optimal humidity level for a person is always maintained in the premises;
  3. It is very simple to mount foam concrete or aerated concrete - blocks are made with a special ridge-groove system, and it is quite difficult to lay out the wall unevenly along these guides. In terms of density and specific gravity, both foam concrete and aerated concrete are also similar. Both products have regular geometric shapes that facilitate transportation, lifting to a height and stacking blocks in the structure. Mechanical processing with hand tools allows you to form geometrically complex, and even curvilinear structures in the walls and interior ceilings;
  4. Profitability affecting the total cost of building a house. Accurate and fast laying of walls means saving on the consumption of building materials and labor costs, low weight means minimizing transportation costs. Components of natural origin are the low cost of production;
  5. Fire resistance according to the first class means that a foam block with a thickness of 150 mm can withstand open flames and high temperatures for up to 240 minutes.

Disadvantages:


  1. Both foam blocks and aerated concrete products quickly absorb atmospheric moisture, reducing the service life of the building by reducing the reliability of the building material;
  2. The strength of foams depends on the brand, but is always lower than the strength of concrete or brick;
  3. A simple manufacturing technology generates a lot of fakes that cannot be visually distinguished from a quality product. Certification documents can also be forged with high quality, and unscrupulous businessmen take advantage of this. Therefore, it is recommended to buy foam blocks from trusted manufacturers;

A generalized answer to the question which is better: foam blocks or aerated concrete products, the answer is one - foam concrete structures are used in construction in a wider range of possibilities, including the construction of external walls with a sufficient degree of strength. Aerated concrete is used in more specialized architectural structures, but with greater responsibility in terms of characteristics.


It is blocks, and not panels or slabs, that are more in demand, since walls are erected from them in low-rise and multi-storey buildings, and partitions inside the house can be built from foam blocks. Frequent use of foams for decorative and complex architectural design is justified by the ease of their machining.

Foam concrete in the form of a solution is used for pouring flat roofs, floor screeds, for thermal insulation of any engineering communications, etc. Foam concrete of high strength grades withstands weight loads well, works as a foundation for low-rise buildings erected from light materials.

All types of aerated concrete, including aerated concrete and aerated concrete, in many special cases can replace brick structures, most often internal ones. When choosing building materials for your home, remember: aerated concrete is stronger, and foam concrete has a wider area of ​​use, the surface of a foam concrete product does not have pores open to moisture, which provides increased thermal insulation. In production, foam concrete is cheaper.

Who is better than foam concrete and aerated concrete updated: January 16, 2017 by the author: Artyom

Sphere modern construction invariably pleases us with new products, thanks to which the process of construction of buildings becomes less time-consuming, and its result - as much as possible corresponding to expectations. As soon as foam blocks and gas blocks appeared on the building materials market, they made a real splash. However, this was quite expected, because their advantages are obvious, and the range of applications is quite wide. However, if you decide to buy one of these building materials, first you need to properly understand not only their differences, but also the individual advantages and disadvantages.

The main thing is to rely not on the subjective opinion and experience of pseudo-specialists, but to trust the recommendations and reviews of professionals. They, in turn, were divided into several camps, two of which consist of adherents of one or another category of goods. others are those who are convinced that all the controversy over their differences is far-fetched and is nothing more than a marketing ploy, and therefore there is no need to argue that better foam block or a gas block for construction.

Naturally, the main differences between the above-mentioned building materials arise even at the stage of their direct production. Both products belong to the category of lightweight concrete, which are traditionally made exclusively from highly ecological raw materials. At first glance, they may seem similar, however, the procedure for their manufacture is significantly different. Even the pores that define these building materials appear in the blocks due to completely different technological manipulations.

Features of the manufacture of foam concrete

The entire production process can be divided into a number of operations:

  • the ingredients of the substance are combined, the foaming element is added last;
  • using a mechanized method, concrete and foam are mixed;
  • under natural conditions, the finished solution hardens.

All the necessary equipment required for the implementation of such a technology is very democratic in its price category, and therefore it is quite affordable even for novice entrepreneurs. Because of this, manufacturers of foam blocks, as a rule, are small, almost household enterprises.

The products of such organizations, as a rule, are not perfect at all. The final products do not differ in a flat surface or proportionality of parameters, which greatly complicates their use.

Manufacturing of building materials of the second type

In this case, the following sequence of operations is carried out:

  • due to mixing of ingredients, a chemical reaction occurs, as a result of which pores appear;
  • finished products in order to increase the level of their strength are processed in a specialized autoclave.
Comparison of the main physical and technical indicators of traditional building materials with foam concrete
Indicators unit of measurement Building brick Building blocks Foam concrete
clay silicate expanded clay concrete aerated concrete
Density kg / m 3 1550-1700 1700-0950 900-1200 600-800 200-1200
Mass of 1m 2 walls kg 1200-1800 1450-2000 500-900 200-300 70-900
Thermal conductivity w / m 2 0,6-0,95 0,85-1,15 0,5-0,7 0,18-0,28 0,05-0,38
Frost resistance cycle 25 25 25 35 35
Water absorption % by weight 12 16 18 20 14
Compressive strength MPa 2,5-25 5-30 3,5-7,5 2,5-15 2,5-7,5

Such a product is mainly produced in factories, since there is a need for rather expensive and high-tech equipment. However, despite the cost of production, it completely pays for itself in the form of high-quality blocks that are almost ideal in terms of geometry. Practice shows that masonry using materials of this type can be called ideal and takes a minimum amount of time.

What are the ingredients?

It is gas silicate products that repel many builders by the presence of aluminum powder, but ultimately it is not contained in finished blocks. Meanwhile, these types of cellular concrete are perfect not only for the construction of houses in which you plan to live, but also for other buildings.
The composition of the above-mentioned foam blocks contains ingredients of this format:

  • blast furnace slag and other types of waste from industrial processes;
  • water;
  • lime;
  • cement;
  • lye, and both soap and sulphide are suitable.

The last ingredient - lye - is a must, because it is he who gives the material the necessary porosity.
Aerated concrete in accordance with the regulatory documentation consists of:

  • quartz sand;
  • cement;
  • water;
  • aluminum paste;
  • lime.

It is aluminum paste that alarms buyers of such building materials, but it is harmful only in pure, independent form... The manufacturing process dissolves its particles almost completely.


Aerated concrete products are more diverse

Obvious differences in structure

The pores of the gas block are much smaller than those of its foam counterpart. The surface color of the first is white, and to the touch the surface seems to be quite embossed and rough. At the same time, its competitor has a smooth surface gray... Therefore, it can be concluded that the differences between these products are visible even with the naked eye.

Parameter Aerated concrete Foam concrete
Thermal conductivity coefficient, W / mx о С 0.10-0.14 0.0-0.38
Volumetric weight, density, kg / m 3 400-800 400-1200
Concrete compressive strength class Class B2.5 at D500 Class B2.5 at D750
Vapor permeability, mg / mchPa 0.2 0.2
Water absorption,% by weight 20-25 10-16
Frost resistance not less 50 cycles 25 cycles
Masonry ... / thickness of the masonry joint, mm Tlieo on glue / 2-3 mm For glue, solution / 10 mm
Average shrinkage of finished masonry 0.3 mm / m 2-3 mm / m
Average thickness of a single-layer wall, m 0.4 0.63
Soundproofing Worse Better
Pore ​​structure Closed Open
Appearance Better Worse
Average cost for pickup, RUB / m 3 3100.00 2500.00
Density grade D350, D400 ... 700 D400 ... 00, D1000 ... 1200
Possibility of masonry reinforcement There is No

Structure defines properties

Since foam concrete is a material whose pores are closed, by itself it has good properties both sound and heat insulation. In addition, it practically does not absorb water, but this does not mean that it will not need exterior decoration... Aerated concrete blocks have small pores with microcracks. Due to this structure, the masonry will be actively exposed to moisture. To avoid negative consequences manifestations of this feature of the building material, it is necessary to cover the masonry with a special substance that can protect the blocks from water.


As for the strength of analogs, conclusions can only be drawn in practice. Indeed, theoretically, the density is proportional to the strength, but in fact, aerated concrete, weaker in theory, is practically not inferior to its competitor. Construction specialists argue that in the field of practical use, it is gas blocks that are more durable and therefore their use in the process of erecting durable buildings is more relevant. However, the cost of such work will also increase.

Gas blocks, in view of their structure and composition, do not differ very high thermal insulation properties... But thanks to the excellent geometry of the products, the frost resistance of the masonry can be significantly increased due to the cement-adhesive compositions. In addition, the solidity of the masonry is ensured, which also minimizes the so-called "cold bridges".
It is believed that foam blocks have much more attractive thermal insulation properties. But to ensure decent indicators of heat preservation, it is necessary to erect walls that are twice as thick as gas-block ones. The conclusion is this: with equal wall thickness, it is aerated concrete that wins.


Applications

Blocks of materials of both categories are used mainly in the construction of buildings with a small number of floors. Foam concrete is suitable for:

  • load-bearing walls not higher than the third floor;
  • partitions;
  • various partitions.

At the same time, more durable and expensive aerated concrete is used for:

  • creating partitions;
  • construction of load-bearing walls;
  • filling voids between the frames of monolithic buildings.

The use of foam concrete involves exterior decoration building

In addition, compacted with a stiffening belt, the blocks of such a product are also suitable for buildings above three floors.

The main question is the value of the cost

Often it is the cost of the product that largely determines the choice of the buyer. Therefore, it is very important to investigate this aspect in order to objectively answer the question "What is better to use a foam block or a gas block for construction?"

The complexity of creating gas products in this category, among other things, lies in the need to use special equipment, the price of which often exceeds the hundreds of thousands of dollars. Foam block products, at the same time, are often made hardly in the field, and often even at a construction site.


Perhaps the differences are contrived

Thus, a completely obvious and expected conclusion suggests itself: gas blocks will cost significantly more than their counterparts. However, you should not rush to make a decision in favor of foam concrete products. The fact is that the money spent must fully pay off at least by the durability of the structure, simplicity construction works and the minimum consumption of related building materials. All this is provided just in the event that you choose gas blocks. The almost ideal geometry of this type of product reduces the time required for construction activities to the minimum possible, and the use of a special adhesive significantly improves the masonry in all existing parameters. Other experts are in favor of the foam block. They argue that by not taking the time to select products with proportional parameters, builders will be able to create almost the same building, but for a lower price, and this is not to mention the incredible savings during the heating season.

Gas block or foam block which is better than building for a house updated: December 14, 2016 by the author: Artyom