AAC Block

AAC blocks are made by mixing the ingredients, molding the mixture, and then curing the concrete in an autoclave under heat and pressure. The expansion agent causes the mixture to increase in volume, resulting in a block that is about 80% air when dry.
You can find AAC block manufacturers and dealers in Coimbatore, Tamil Nadu on Justdial and IndiaMART
Autoclaved Aerated Concrete (AAC) blocks are a lightweight, durable, and eco-friendly building material used for construction. structures made of AAC blocks can endure higher seismic loads than structures made of ordinary bricks

