What is Autoclaved Aerated Concrete(AAC) Blocks?
Autoclaved aerated concrete is a certified green building material and it is used for only commercial, residential and industrial constructions. Autoclaved aerated concrete is a durable building product, which is produced in a wide range of strengths and sizes. Comparing to the red bricks AAC blocks are three times lighter weight. Autoclaved aerated concrete blocks are porous, renewable, non-toxic and recyclable. The AAC block materials were developed in 1924 in Sweden. Autoclaved aerated concrete(AAC) has become one of the most used building materials in Europe and other countries.
AAC is developed with common materials like cement, sand, water and a small amount of rising agent. After mixing and molding these all products, it is created a unique property by using autoclaved under pressure and heat. Autoclaved aerated concrete has an excellent acoustic absorption and thermal insulation properties. AAC material is environmentally and economically superior to the more traditional and structural building materials like wood, stone, concrete and brick.
AAC blocks vs red bricks:
Nowadays AAC blocks are very popular materials and a unique type of building material due to its super sound resistance, heat, and fire. Autoclaved aerated concrete blocks are lightweight and offer very ultimate flexibility, workability, and durability. AAC blocks are main ingredients are used in water, sand, cement, gypsum, and quicklime. Due to the chemical reaction in aluminum paste provides the AAC blocks are lightness, porous structure, and insulation properties.
AAC materials are completely different to developed and quality compared to other lightweight concrete materials. Forms are removed from the AAC block materials, but it is solid to seeing and soft to touch. After that, it is cut into either panels or blocks and placed in an autoclave chamber for 12 hours.
The temperature reaches the 190 degrees and pressure reaches the 9 to 12 bars, during this steam pressure and hardening process. The quartz sand reacts with the calcium hydroxide to form calcium silicate hydrate, it gives the AAC its high strength and other unique properties.