Autoclaved Aerated Concrete (AAC), also known as Autoclaved Cellular Concrete, is a lightweight precast concrete with a history dating back nearly 120 years.
This innovative building material is primarily made from widely available inorganic raw materials such as sand, stone, cement, lime, gypsum, and a small amount of aluminum powder, processed using an autoclaving technique.
These ingredients are mixed in precise proportions, poured into molds, and then cured in a high-pressure steam environment at around 1800°C for approximately 12 hours.
The result is a non-fired concrete block — Autoclaved Aerated Concrete (AAC) — known for its superior performance characteristics.
In Vietnam, EBLOCK is a pioneering brand in the production of this environmentally friendly and sustainable building material.
STANDARD SIZE
| LENGTH (mm) | WIDTH (mm) | THICKNESS (mm) |
| 600 | 200 | 75 | 100 | 150 | 200 |
*Other non-standard dimensions and specifications required by the construction works can be manufacturered on individual orders.
SPECIFICATIONS (TCVN 7959:2017)
|
Description |
Unit |
Specifications |
| Minimum Compressive Strength | (MPa) (N/mm2) | 3.5 |
| Equivalent Compressive Strength Grade (per TCVN 7959:2017) | (MPa) (N/mm²) | B3 |
| Dry Density | (kg/m³) | 451 – 550 |
| Drying Shrinkage | (mm/m) |
[To be specified]
|
| Fire Resistance |
(hours)
|
> 4
|
| Sound Insulation Rating | (dB) | 38 |
| Dimensional Tolerance | (mm) | TCVN 7959:2017 |
(*)Fire resistance and sound transmission class are influenced by the thickness and design of the wall system.
Applications
Build an outer wall
The exterior wall is the perimeter surrounding the house, serving to protect against adverse environmental impacts (natural disasters, rain, wind, storms, flooding…) from entering the home. When constructing exterior walls with autoclaved aerated concrete EBLOCK, the flexibility of the specifications of this material meets the criteria for wall thickness. Additionally, it ensures that the walls do not crack under adverse weather conditions and creates the effect of “warm in winter, cool in summer” for your home.
Build partition walls
Partition walls play a role in limiting and separating spaces, enhancing the aesthetic feel of the building. Especially, modern architectural projects demand a high level of sound insulation. Therefore, using AAC EBLOCK bricks with a structure of more than 80% tiny air bubbles ensures to block noise from outside entering the home, preventing sound transmission between rooms, satisfying the need for rest for individuals.
Fire Resistant Wall Construction
Autoclaved aerated concrete (AAC) is a non-combustible inorganic material, with the ability to prevent fire spread for up to 4 hours, meeting the standard QCVN 06:2022/BXD – the national technical regulation on fire safety of houses and projects. AAC bricks are often used in high-rise buildings, warehouses, and factories, enhancing fire resistance and ensuring safety for people and structures.
Build a fence
Constructing fences with autoclaved aerated concrete blocks EBLOCK is very quick, which helps save a significant amount of labor costs and completion time of the project. This non-fired brick type creates smooth gray-white walls that do not require plastering. Furthermore, building fences with lightweight bricks helps reduce noise and provides excellent fire resistance, commonly used as fencing for transformer stations, warehouses…
Floor leveling
When a house shows signs of subsidence, causing many inconveniences for the living space, people often use the method of underpinning to improve the condition of the house. Using lightweight materials such as autoclaved aerated concrete blocks allows for quick construction and cost optimization.
Thanks to its ultra-lightweight nature, AAC blocks help reduce the load on the structural framework and foundation, especially when underpinning the floors of buildings and high-rise apartments. The dimensions of AAC blocks are very diverse, making it easy to upgrade new flooring with the ideal height.
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