June 14, 2024

Fine aggregates, cement, as well as an expansion agent that makes the freshly mixed material rise like bread dough are the ingredients used to make autoclaved aerated concrete. In actuality, this kind of concrete has an air content of 80%. The fabric is cut and molded into units with exact dimensions in the manufacturing facility.

Thin bed mortar is used to bond autoclaved aerated concrete blocks or panels after they have dried. Walls, floors, and roofs can all be built with this aerated concrete. In addition to being sturdy and fire-resistant, autoclaved aerated concrete provides great acoustic and thermal insulation. AAC needs some sort of applied finish to make it lasting, such as siding, natural or artificial stone, or stucco treated with a polymer.

Making of AAC cement

A pressure vessel called an autoclave is used to create lightweight foam concrete (aerated concrete) blocks that are a common building material. Aerated concrete is becoming a more popular building material, especially for buildings that aim to achieve specific building standards. Since the middle of the 1920s, this kind of natural raw material-based precast concrete has been a construction standard. Many companies offer it as a construction material, and they use fine tools to achieve good quality.

Advantages of AAC cement


For walls, floors, and roofs, autoclaved aerated concrete blends insulation and the structural strength in one material. It may be easily routed to build chases for plumbing pipes with smaller diameters and electrical conduits. Thanks to its lightweight and cellular qualities. It also takes nails and screws with ease. Because of this, it has flexible design and construction as well as field adjustments that are simple.

Energy efficiency

Another great advantage of adopting autoclaved aerated concrete blocks is the energy savings they can provide. The building’s interior can be kept at a pleasant temperature. Thanks to the blocks’ excellent insulation. This means the HVAC system won’t have to work as hard to cool or heat the room.


Dimensional stability and robustness are present in AAC cement blocks. AAC, which is made of cement, is resistant to moisture, rot, insects, mold, and mildew. Units have exact shapes and adhere to strict standards.


AAC, which is eight inches thick and has four hours rating, has outstanding fire resistance. The actual performance exceeds this timing and meets test requirements for up to eight hours. It won’t burn or release harmful fumes either because it is non-combustible.


As AAC is lightweight, its R-values are equivalent to those of conventional frame walls, but it has higher thermal mass, offers airtightness, and is not flammable. When used as interior partition walls, such lightweight provides a high level of sound attenuation for isolation from outside disturbances and other rooms.


AAC concrete units are very workable and may be drilled and cut using standard power tools for woodworking, such as band saws. Concrete must undergo tests to determine its compressive strengths, moisture content, bulk density, and shrinkage because it is generally light and low in density.

Final thoughts

There are many advantages to using autoclave-aerated concrete. You should consider using AAC for your upcoming construction project to benefit from its advantages personally. Contact a reputable ready mix concrete supplier to learn more about the uses for autoclaved aerated concrete.