What better foam block or gazoblok: comparison of several parameters

Lightweight concrete blocks - demanded material for construction

Production technology blocks of foamed concrete

To understand the physical qualities of the materials necessary to know their production technology. All blocks of foamed concrete is prepared by forming a solution in a concrete air bubbles. From the foaming process and composition of the mixture depends on properties of the resulting blocks. we are interested penoblokProduce such technology:

1. Kneading the mixture produced in a special mixer with inclined blades. This is to prevent the disappearance of air bubbles. The working mixture comprises portland cement type M 400 D 20, the sand fraction of 0.02, no debris and dirt from humidity not more than 5% of foaming agent (there are several types), water, and fiberglass for reinforcement. In this first fibrovolokno dissolved in water for better reinforcement.
2. Ready mixture is poured into the form required size.
3. Drying products produced in vivo or in an autoclave. The latter method provides a higher-quality product.

Building a house out of foam

Gazoblok manufactured in another way. Here, instead of the foaming agent in the finished mixture is added blowing agent. The most famous of them is aluminum powder PAP-1 and PAP-2. At the time of entering into a mixture of a chemical reaction occurs with evolution of hydrogen gas. The solution is poured into molds. The mixture rises as the yeast dough until it fills the entire volume of the mold. After 2 chasa weight excess are removed and the product dried in vivo or in an autoclave.

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These slight differences in the production technology of the materials have led to the fact that the finished products differ greatly in their consumer qualities. What better foam block or gazoblok, we learn by comparing them.

Useful advice! In the case of a large building, you can organize the production of light units with their own hands. This will help save money and perhaps will start a home business.

Cellular concrete blocks is very light

What better foam block or gazoblok?

Before you start to compare these two popular building materials, you need to decide on what criteria it should be done. We list the most important indicators:

• strength;
• geometric;
• environmental;
• economic;
• ergonomics;
• thermal insulation and waterproofing.

We analyze the strength characteristics of both materials.

Comparative characteristics gazoblokov and foam blocks

Strength and linear dimensions

Foam blocks are of different density. It is from this figure depends on the strength of the material. To apply the heat-insulating walls circuit blocks low density D400 and D500 to V0,75 strength corresponding class and B1. Blocks, which can serve as a thermal insulation and as the carriers have a density from 600 to D1000 strength class from V2,5 to B7.5. Pure product carriers have density D1100 - 1200, and the strength of 10 - 12.5.

Concerning concrete blocksThey also come in different brands, but with a slightly different range of density and strength. Density them starts from D300 and, in most cases, ends at D700. The strength lies in the range from B2 to B4.

Foamed and easily cut aerocrete ordinary hacksaw

As you can see, these two indicators in both product overlap, but the range of foam blocks are much higher. This means that the foam concrete blocks to pick up the required parameters will be easier. In this case, aerated concrete is much better, because it produced only in large enterprises.

Useful advice!When choosing a masonry material made of foam concrete it is necessary to pay attention to its density. The higher it is, the stronger the material, but it is colder and so, as the content of air bubbles in it smaller.

If we compare the geometric parameters, it is possible to identify that both materials have the same range of linear dimensions. However aerated concrete blocks have a smaller deviation from the standards, their faces and edges are perfectly aligned. This is because the material does not produce artisanal unlike foam blocks.

When laying gazoblokov use a special glue

Ecology, economy and ease of use

What better foam block or gazoblok on environmental indicators. all just here. There is such a term as the environmental factor. Now, gazoblokov it is 2, while the foam blocks - 4. Therefore, according to this indicator aerocrete come forward.

From an economic point of view it is necessary to estimate the cost of a cubic meter of either material. Foam blocks are from 35 USD per m³ and aerocrete 50. But it is necessary to take into account that the construction of the supporting walls of the foam blocks is only possible with a high density class, the price is comparable to the price of aerocrete. Also, the adhesive much cheaper preparation masonry mortar. Therefore, when choosing the material for construction to take into account this option does not make sense.

Blocks of aerated concrete are easily treatable

Ergonomics - is the degree of ease of use of materials. Since the specific weight of AAC is somewhat less than that of the opponent, each block weighs less the same dimensions. It gives less stress on the foundation and greater convenience in the implementation of the masonry. During transport it is also more convenient for this reason. Aerocrete much easier to handle: cut, cut and drilled they can be directly on the site. Using a special adhesive for laying gazoblokov, reduces the thickness of the seam to 2 - 3 mm to 2 cm in the foam blocks.

Higher strength at the same density makes it easy to install on the walls of gazoblokov fasteners for furniture. In terms of ergonomics of the above examples it is evident that better aerocrete foam blocks, or at least, when they are compared same classes.

Driving lining the walls of aerated concrete

Heat insulation and waterproofing

Thermal insulation - the most important indicator that affects the possibility of construction of the object in the harsh winters. heat conductivity are inversely proportional to the density of the material. Gazoblok with D500 density have a thermal conductivity of 0.11 Wm * coefficient K, and concrete blocks of the same density of 0.12 Bm * K. The difference is small, but it is necessary to take into account the fact that the foam blocks D500 are highly insulating and can not be used as carriers.

If the density is increased, the thermal conductivity rate and change in the direction of increasing, and this has a negative effect on the insulating properties of the material. Thus, the house of aerated at equally be twice the thickness of the walls warmer.

The house is constructed of foam blocks fast

Useful advice! A good solution is to build the walls of a heat insulating foam block, which is draped with a brick. In this case, a normal combination of strength and thermal insulation.

Waterproofing properties of aerated concrete are much worse than the foam. This is because the inside of the first capillary pore structure and the second closed air bubbles in the water which misses. Therefore foambloc freely swims in water, not getting wet and gazoblok eventually sink and absorb water. The worst part is that the aerated wet winter may collapse and its insulating qualities are reduced. This problem, however, is solved by the device of the waterproofing layer.

House warming plates made of aerated concrete

After considering all the features of the materials, every man for himself can answer the question that better or foam block gazoblok. Both materials are in demand. Aerocrete longer used for the construction of residential houses, because their strength characteristics coupled with low thermal conductivity make it possible to do so without fear for the quality.

House of aerated concrete more durable. The price gazoblokov much higher, but the overall cost will be the same. Foam is cheaper and can be done by yourself, but it is worse in quality and expensive adhesive mortar for him. That is, compared to the whole, these two can not be material. Choice people make on the criteria that are more important to them.