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Autoclaved aerated concrete (shorted as AAC) is a kind of lightweight precast concrete, it was invented in the mid-1920s and has developed for around 100 years. Since 1980, the production of AAC Blocks continues to increase globally and it is increasingly used by developers, architects, builders around the world, especially for prefabricated building, this is in line with the development trend of the construction industry.



Ecotrend manufactures autoclaved aerated concrete (AAC) or aerated lightweight concrete (ALC) block and panel, it is a composite of cement, lime, and silica sand. Besides, ALC panel uses bidirectional welded steel mesh (reinforcing bar) ,which has been treated with a superior rust preventive liquid and cured with high-temperature, high-pressure steam. A porous silicate board is manufactured for high performance of anti-permeability and sound insulation. It can be divided into external wall panels, partition panels (internal wall panels), floor panels and roof slabs according to the purpose.


AAC blocks and ALC panels are widely used in various projects,such as commercial, factory, and residential buildings etc. The product has the characteristics of convenient installation, wide application range, and high construction accuracy; meanwhile, it can greatly improve the usage performance of the building, and reduce the cost of construction. 



Thermal Insulation

The thermal conductivity of AAC/ALC is 1/6 of clay brick; helping keep indoors warm in winter and cool in summer; saving on energy costs.


100mm thick panel has 4 hours of fire rating, and no harmful gases will be released even at high temperature. Recognized as Euroclass A1 non-combustible product.

Sound Insulation

Inside of AAC/ALC, there are plenty of pores, so that it has effective sound insulation. The noise can be reduced by 30 – 50 dB depending on its thickness.


The density of AAC/ALC is 1/4 of common concrete, 1/3 of clay brick, similar to wood; which makes it more efficient and safe to install, while reducing the structural cost by 15%-20%. 

High Strength

The compressive strength up to 5.0 M/Pa


Lightweight and excellent integrity makes it able to absorb strong impacts, which reduced inertia force during the earthquake.


There are millions of closed pores on the surface; which effectively prevent moisture infiltration.


Follow the principle of sustainable development; using waste materials as raw materials for production.

Convenient Construction

Customized size helps install faster and easier; Panel construction speed is 4 times of traditional block

Easily Worked

Similar to wood; easily to cut, drill, nail and grind. 


  • What is Autoclaved Aerated Concrete?

    Autoclaved Aerated Concrete (AAC) is a lightweight concrete that is formed into blocks and panels for a wide range of loadbearing and non-loadbearing construction applications. It is manufactured from silica sand, cement, recycled material, lime, gypsum, aluminium paste and aerating agents. It is moulded, cut and steam pressure cured in an autoclave before being packed, ready for transport.
  • Is Autoclaved Aerated Concrete a new building material?

    Aerated Concrete Autoclaved (AAC) is an amazingly innovative building material that has been used in Europe for more than 80 years and in the US for more than 15 years.  
  • Where has Autoclaved Aerated Concrete been used?

    It can be used ranging from low rise industrial/commercial developments to high rise offices or medium density residential buildings. 
  • Is Autoclaved Aerated Concrete a load bearing material?

    The intensity of pressure for cube is more than 4mpa. The load bearing capacity for one point is more than 1200N. The rebars within AAC panels are made according to computer calculating force. As a non-loadbearing cladding, AAC panels can be used under circumstances of pressure.
  • What are the benefits of Autoclaved Aerated Concrete over other building materials?

    a. Cost effective - lightweight panels allow for reduced structural components and smaller lifting equipment.
    b. Excellent thermal resistance performance.
    c. Acoustic performance - effective sound transmission barrier between external and internal environments of the building.
    d. Excellent fire rating properties.
    e. No wet trades - less mess and a cleaner, safer work area.
    f. Less wastage - significantly reduced waste as panels can be custom-made to length requirements.
    g. Fewer waste bins and less crane movements.h. Design flexibility - panels can be easily cut and routed to suit design requirements.
    i. Panel lengths up to 4.8 metres. 
    j. Strong, secure and durable with corrosion protected steel-reinforced panels.


* If you have any questions, please get in touch with us right away. We are ready to assist 24/7.
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Specializing in the development, manufacture and export of eco-friendly, energy-efficient new building materials --- autoclaved aerated concrete (autoclaved lightweight concrete) products. Ecotrend is the largest and only ALC panel manufacturing enterprise with green prefabricated building material in Cambodia.




Hangzhou Huafei Express Import and Export Co.,Ltd. (Marketing Center)

 Room.1101, Huijin Financial Center, No. 148 Jincheng Road, Xiaoshan District, Hangzhou City, Zhejiang, China.

Ecotrend (Cambodia) New Building Materials Development Co., Ltd.

Sihanoukville Special Economy Zone, National Road # 4, Phum Pou Thoeung, Bet Trang Commune Prey Nob District, Sihanoukville Province, Cambodia.

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