Autoclaved Aerated Concrete (AAC): Revolutionizing Sustainable Construction with Advanced Materials and Techniques

Autoclaved Aerated Concrete (AAC) is a lightweight, porous concrete manufactured from quartz-rich sand, lime, cement, calcium sulfate, water, and a pore-forming agent like aluminum powder, which reacts to create a cellular structure subsequently hardened through autoclaving. This review provides a comprehensive overview of AAC, a material with significant global relevance in sustainable construction due to its thermal insulation and resource efficiency. Computerized search methods were combined with manual literature searches to identify prominent articles on AAC from ۲۰۱۰ to ۲۰۲۵, offering a detailed review of the material's properties, production, applications, and advancements. The reviewed literature highlights AAC's key properties, including low bulk density (۴۰۰–۸۰۰ kg/m³), lower thermal conductivity, high heat and fire resistance, and reduced shrinkage compared to traditional concrete. AAC finds diverse applications in residential, commercial, and industrial buildings, leveraging its lightweight nature for ease of handling and reduced transportation costs. The material offers environmental advantages through reduced energy consumption in production and application and the potential for incorporating waste materials. Challenges include lower compressive strength compared to conventional concrete, potential durability concerns in freeze-thaw conditions, and regional variations in adoption influenced by codes and material availability. Recent advancements focus on enhancing manufacturing efficiency through automation, integrating recycled materials, and exploring novel applications like ۳D printing. The findings underscore AAC's crucial role in promoting energy efficiency and sustainability in the construction industry, with ongoing research and technological advancements continuously improving its performance and broadening its applicability. Despite existing challenges, the global trend towards green building practices positions AAC as a material with significant future growth potential.

کلیدواژه ها:

Autoclaved Aerated Concrete ، Sustainable Construction ، Thermal Insulation ، Lightweight Concrete ، Manufacturing Process