Autoclaved Aerated Concrete or AAC blocks are lightweight, concrete building materials that are used to make houses and buildings by a fast method of construction. It is a substitute for the traditional method of using red bricks. Builders in India keep themselves aware of the latest trends and technologies of using AAC Blocks in place of red bricks. New homemakers searching for construction materials must ask builders for the best quality material for their dream house. Good knowledge of construction materials and awareness about the quality of AAC blocks must be necessary before starting a project. Builders must be aware while making the final decision of choosing the right choice for the building material.