Aerated concrete is manufactured by expanding the binding material mix by:

Explanation:

• Aerated concrete, also known as Autoclaved Aerated Concrete (AAC) or lightweight cellular concrete, is manufactured by introducing gas into the mix, causing it to expand and form a cellular structure.
• This results in lightweight, thermally insulating, and fire-resistant concrete blocks or panels.
• The main method of aeration involves adding a gas-forming agent like aluminum powder or paste to the mix.

• Aluminum reacts with calcium hydroxide in the cement paste to produce hydrogen gas.

• This gas forms tiny bubbles, causing the concrete mix to expand in volume.

 Additional Information Autoclaved Aerated Concrete

• The hydrogen gas creates uniform air voids throughout the mix.

• Once the material sets, the bubbles are trapped, resulting in a honeycomb-like structure.

• After setting, the material is often cured in an autoclave (a high-pressure steam chamber) for strength and stability.

• It has low density and is lightweight, making it easy to handle.

• Excellent thermal insulation and fire resistance.

• It can be cut, nailed, and drilled easily, much like wood.

• Used in non-load bearing walls, partition walls, roof and floor panels, and insulated blocks.

• Especially suitable for multistory buildings due to its light weight.