Autoclaved aerated concrete (AAC) is a lightweight building material made from a mixture of sand, cement, lime, water, and a small amount of aluminum powder. This combination creates a chemical reaction that produces tiny air bubbles, resulting in a porous structure. AAC is known for its excellent thermal insulation properties, making it energy-efficient for construction. The material is produced in large blocks or panels, which can be easily cut and shaped on-site. Due to its low density, AAC is easier to handle and transport compared to traditional concrete. It is also fire-resistant and environmentally friendly, contributing to sustainable building practices.