What is better gas block or foam block: Which material is better? + Video

What is better gas block or foam block: Which material is better? + Video In this article, let's try to figure out together which material is better for building a house - a gas block or foam block.

A comparative characteristic of the main qualities of these materials will help us in this.

We learn the secrets of the technology for the production of aerated concrete and foam concrete, on which the cost of the material depends, and what professionals advise to opt for.

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New materials for the construction of houses

On the modern construction market with enviable frequency, new materials for construction of houses. Among them are gas block and foam block , which made a kind of revolution in construction.

Although, this is not surprising, because the materials have remarkable qualities that make the process of building buildings easy.

Gas block or foam block, which is better?

This question is probably asked by the owners of sites when they face the choice of materials.

What is better gas block or foam block: Which material is better? + Video

Let's try to figure out what characteristics each of these building materials is endowed with, and which one should be given preference. In this matter, it is important to take into account the opinion of experienced developers, and not use word of mouth. People's opinions may differ, and quite dramatically.

Features of the manufacture of aerated concrete and foam concrete

These materials are made from raw materials with a high environmental friendliness, and are included in the category of lightweight concrete.

It is quite difficult for non-specialists to distinguish these materials by their appearance, because they are very similar. But, their production technology is different. Even the formation of pores in blocks occurs as a result of different technological procedures.

Foam block production

The production technology includes several stages:

  • What is better gas block or foam block: Which material is better? + Video The components of the future material are mixed together, and an element that promotes the formation of foam is added at the end.

  • Foam and concrete are mixed using a mechanized process.
  • The mixture hardens in a natural environment.

The technique used for the production of foam concrete is very affordable, and even beginners in this field can afford it.

Quite often, the manufacturers of foam blocks are small firms.

This leads to the fact that the original product does not have an attractive appearance and proportional forms, which forces builders to adjust each block in size during the construction of the house.

Gas block production

Manufacturing stages:

  • What is better gas block or foam block: Which material is better? + Video In the process of mixing components under the influence of a chemical reaction, air bubbles - pores appear.
  • The finished blocks are subject to special autoclaving in order to give them an aesthetic appearance and ideal strength.

Given the complexity of the technological process, gas blocks for building a house are produced mainly at specialized factories, which in turn affects the final cost of the product. It cannot be cheap a priori. But, building houses from a gas block is a pleasure, and the process itself takes a little time, because nothing needs to be cleaned, cut, or adjusted to size.


Foam concrete composition

  • Blast furnace slag and waste from other production processes.
  • Lime.
  • Water.
  • Lime.
  • Cement.

  • Soap or sulphide lye (imparts recognizable porosity to blocks).

Note. Air bubbles in aerated concrete are caused by the reaction of the concrete solution and the foam former. They are a closed cell filled with oxygen.

Many unknowingly are afraid to buy gas blocks due to the presence of aluminum powder in the composition.

But, experts say that it is not in the final product, and the harm comes from the component in its pure form.

Aerated concrete composition

  • Quartz sand.
  • Cement.
  • Water.
  • Aluminum paste.

  • Lime.

How to distinguish a foam block from a gas block?

You can distinguish a foam block from a gas block by the size of the pores. In the gas block, they are small, in the foam block, they are larger.

The color of aerated concrete blocks is white, the surface has roughness and relief. The foam blocks are smooth to the touch and have a gray tint.

Knowledge of these nuances will help beginners distinguish between these two materials in appearance.

Important! Before buying foam concrete blocks, be sure to ask for a certificate of quality, so as not to buy a pig in a poke.

What is better gas block or foam block: Which material is better? + Video Foam blocks due to closed pores have excellent heat and sound insulation qualities. In addition, the material does not absorb water, but at the same time needs to be treated with special water-repellent compounds.

A gas block for building a house, which has small pores with microcracks, is more susceptible to the destructive effects of moisture, so the blocks must be covered with waterproofing substances.

The strength and reliability of each of the materials can only be judged in practice. As the theory says, the strength is directly proportional to the density of the material. But in fact, even at first glance, fragile aerated concrete is in no way inferior in strength to a foam block.

Important! The heat conductivity coefficient of the gas block with a density of D 500 - 0.12, a foam block with a density of D 700 - 0.


What is better aerated concrete or foam concrete?

The opinion of specialists is unequivocally - the best material for the construction of housing for permanent residence, as well as other types of buildings, is a gas block. Since he managed to establish himself as a yak, a reliable and durable material.

Although aerated concrete cannot boast of good heat preservation properties, due to its wonderful geometric shape and frost resistance, this deficiency can be compensated for by using a high-quality cement-adhesive composition during masonry. In addition, a kind of monolithic masonry allows you to reduce the penetration of cold masses to a minimum.

What is better gas block or foam block: Which material is better? + Video

Penobenone has good heat retention rates, but in order to build warm housing, it is necessary make a thick masonry of walls, which will entail the purchase of more material. As a result, the gas block holds the palm with the same wall thickness.

Gas block and foam concrete are mainly used in low-rise construction. Foam concrete is more often used for load-bearing walls no higher than the 3rd floor, various types of partitions.

Aerated concrete is ideal for the construction of load-bearing walls, they close the spaces between the frame in monolithic structures, and also build partitions.

Also, gas blocks are suitable for the construction of houses above 3 floors, provided that stiffening belts are used.

Very often, the pricing policy of the material affects the answer that the gas block or foam block is better. But, in any case, before making a final decision, you need to analyze all the features and nuances of using these building materials.

Above, we have already described the production technology of each material, and concluded that the cost of building a house from gas blocks is higher.

It is important to take into account the fact that the financial costs should pay off with the durability of the house, elementary styling and low consumption of additional materials.

All this is possible when using aerated concrete.

What can be said about the useful qualities of foam concrete? If you agree to spend more time looking for proportional foam concrete blocks, having a desire to save money on material, professional builders will build a strong house for you, and it will cost less than from aerated concrete.

In addition, you can save the family budget on heating in the cold season, because foam concrete retains heat perfectly. As a result, aerated concrete houses are warmer than foam concrete houses with equal wall thickness.

Installation of ventilated facades and proper insulation of the house will create a favorable climate in the house.

Totals.Comparison table

Gas block Foam block
Thermal conductivity no yes
Block geometry yes no
Masonry reinforcement yes no
Lightweight (weight) yes no
Labor savings yes no
Low load on the foundation yes no
Durability yes (50 -70 years) no (30 years old)
Quality of finishing work yes no
Cheapness no yes
Hygroscopicity no yes
Sound insulation no yes
Frost resistance yes no

What is the market price and where to buy?

  1. Aerated concrete blocks - buy a building yard in the online store, go. ...

  2. Aerated concrete blocks - buy in Petrovich, go to the online store. ...
  3. Building Blocks in Leroy Merlin, go to the online store.


What is better gas block or foam block: Which material is better? + Video