Technology

White Brick Build Tech (AAC Blocks)

Autoclaved Aerated Concrete block (also called Autoclaved Cellular Concrete) is an economical, sustainable, lightweight solid block that provides thermal and acoustic insulation and is also fire and termite resistant.

To manufacture AAC, Portland cement is mixed with lime, silica sand, or processed fly ash, water, and aluminum powder or paste and poured into a mould. The reaction between aluminum and concrete causes microscopic hydrogen bubbles to form, expanding the concrete to about five times its original volume. After evaporation of the hydrogen, the now highly closed-cell, aerated concrete is cut to size and formed by steam-curing in a pressurized chamber (an autoclave). The result is a non-organic, non-toxic, airtight material that can be used for all walling applications. AAC generates no pollutants or hazardous waste during the manufacturing process.

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