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foam concrete

foam concrete

Foam concrete is one of the most widely used building materials in the world, thousands of homes are built annually with this material.

Also called foam concrete, it is lightweight and mostly used for thicker works.


Foam concrete is made in the form of slabs or blocks, and in this way, it is used more than anything else in the construction of homes, commercial or residential buildings.

What is foam concrete?

 It is a lightweight concrete that contains many uniformly distributed air voids. The main composition of foam concrete consists of cement, refractory ash, synthetic fibers, foaming agent, and some other additives.

The structure of aerated concrete contains millions of tiny air bubbles, creating a closed honeycomb-shaped system with microscopic dimensions.

Because of this special structure, it has very good water permeability, which helps aerated concrete structures to have very good sound insulation, heat insulation, and fire resistance.

A characteristic that distinguishes this concrete is its specific weight or the amount of air per cubic meter of the material. The lower the weight, the higher the amount of air per cubic meter, which gives concrete its insulating ability.

The production of foamed concrete begins with the preparation and mixing of raw materials, then the pieces are prepared and the molds are engineered where the materials are made, for subsequent stacking and packaging.


Another alternative process in the creation of concrete, consisting of the use of foaming agents and the use of the heat of hydration used in preparation. This technology provides excellent results in terms of mechanical resistance and thermal insulation.

 Advantages of foam concrete

Foam concrete has great physical properties that combine insulation and resistance. It has many benefits that make it one of the best alternatives in construction.


These are some of the benefits it offers.


Quick assembly

Its low density and lightness allow for faster mass synthesis. It can be operated easily as it is not complicated to cut.


compressive strength

It varies depending on the density of the material. The resistance will be higher the density. They can even build multi-level group housing.


Resistant to water absorption

This type of concrete has a structure that makes water absorption much slower. It acts as a moisture regulator that absorbs excess moisture or softens dry air. In this way, it creates a pleasant atmosphere in the house.


It is a great thermal insulation

As mentioned earlier, it maintains a nice and cool indoor environment, both in winter and in summer.


Thus, in times of cold, the interior will be warm, while in summer we will be able to keep the interior cool. Of course, this leads to significant savings in air conditioning and heating.



Foamed concrete weighs between 10% and 87% less than conventional concrete. This significant weight reduction represents a significant cost saving for foundation and structure.



It is a light material, weighing half the weight of other similar materials. This makes transportation tasks much easier. Also, the work is much easier (cutting, nailing, sawing, etc.).



Foamy concrete has no time as an enemy, it coexists. It is as solid as rock and does not decay.


acoustic absorption

In this way, the sound bounces back to its original place. Concrete absorbs a small part, but the noise that gets inside is minimal.



Thanks to its ease of manufacture, it can be made in different ways: arches, pyramids, corners, etc. Thus, the aesthetic effect of the buildings increases.



Because of its low thermal conductivity, the heat flux of foam concrete is very low. It is ideal in industrial, agricultural, or administrative buildings.


Dead Load Reduction

It is necessary for areas with high seismic risk. In the event of an earthquake, the broken walls will fall, but it will not cause serious damage like other traditional materials.


Applications and uses

The main application of foam concrete is in the construction field, in the development of houses and buildings. It is also used in works such as grouting, binders, subfloors, decks, and preformed slabs and slabs that are used as the basis for paving.

Foam concrete is used in the form of roofs, lintels, floors, and joints that meet all requirements of business and building construction.


It is widely used as a filler for bricklayers in walls, as an insulating material for empty blocks, and any other filler that requires high thermal and sound insulation properties.

It is also used as a heat insulator on floors and roofs and as a hardwood flooring for tennis courts.


Foam concrete properties

• Reduce the dead load: The use of foam concrete can be observed in any work, and the lighter weight loads can be observed, and this is very important in high seismic risk sites. When a seismic event occurs, walls that crack and fall will not cause as severe damage as other conventional materials. In addition, due to the low-density level and low weight, the handling of foam concrete is very simple, including transportation, alignment, and placement. All this makes the construction execution time not very long.

• Speed ​​of construction: The absence of coarse aggregate and the rolling effect caused by the pores in the concrete gives a great consistency to the material. Vibration is not required because, in pouring, the foam concrete is evenly distributed and fills the voids with its density, in this way the wall can be poured on-site and in one procedure, making the construction speed accelerate.

• Thermal insulator: It is the coefficient of resistance to heat flow. This is one of the most prominent characteristics of this substance. The level of thermal insulation increases or decreases inversely with the density of concrete.

• Fire protection: Buildings are classified according to the heat production potential of their components and their average content. This type of concrete does not have fuel properties, and this is due to the large percentage of water contained in it because it can be disposed of before the accident.

• Acoustic properties: This type of concrete is very effective in reducing noise in concrete walls

movable bulb. This is due to the proportionality of the weight of the wall, the lighter the wall, the greater the sound insulation, taking into account the uniformity in the distribution of voids, because this is what isolates high and low frequencies. Concrete provides a sound-absorbing rebound effect, making it an effective sound insulator, and is used in partition walls or facades.

• Durability: This material behaves in a similar way to conventional concrete, but because it is more porous, it can be more susceptible to physical accidents. When used below the original soil level, it should contain an additive that helps prevent damage from contact with water. Concrete is usually protected with plaster. When installing the material, the same care must be taken for temperature-induced contractions. Possible mechanical damage that may occur can be avoided by using special polyethylene fibers for this type of concrete.


Why choose foam concrete?

Foam concrete is one of the best building materials on the market. It is a very economical and feasible option for any business, especially for buildings and homes.

The numerous advantages and benefits of this material make it ideal for the construction of any structure.


For such concrete, it is not necessary to make an internal insulator to complete it, since its structure consists of thousands of air micro-cells, which gives it the property of thermal insulation. Builders prefer this concrete for this insulation, which is also known as split insulation.


Thanks to this property, this material prevents any heat loss, acting as a container for heat in the winter and as a barrier to it in the summer, it is an excellent air conditioner.


This concrete has the peculiarity of being an element that breathes. It allows water vapor from daily tasks and occupants to pass through. This is vital to prevent moisture damage and condensation such as fungi.


Another very important feature is that this substance is classified according to its behavior with fire. This means that it is fireproof and completely impermeable to toxic gases and smoke. In the event of a fire, the concrete wall has the property of fire resistance for about six hours.


The material can be laid quickly and easily, due to which its blocks are assembled with mortar. Likewise, the shape and light weight of the blocks allow the work to be highly efficient and high performance.

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