AAC Plant

What is AAC Blocks?

Autoclaved Aerated Concrete is a Lightweight, Load-bearing, High-insulating, Strong building product, which is provided in a full range of sizes and strengths. AAC Blocks is lightweight and connect to the red bricks AAC blocks are three times lighter.


The Autoclaved Aerated Concrete (AAC) material was produced in 1924 in Sweden. It has grown one of the most used building elements in Europe and is fast growing in many other countries around the world.
AAC is created from the natural materials lime, sand, cement and water, and a small number of the growing agent. After processing and moulding, it is then autoclaved below heat and pressure to produce its unique properties. AAC has a great thermal protector and acoustic reflection properties. AAC is fire and pest resistant and is economically and environmentally better to the more common structural building elements such as concrete, wood, brick and stone.
At the point at AAC is mixed and cast in structures, a few mixture responses occur that give AAC its lightweight (20% of the heaviness of cement) and hot properties. Aluminium powder reacts with calcium hydroxide and water to frame hydrogen. The hydrogen gas bubbles and copies the size of the crude mixture making gas rises to 3mm (⅛ inch) in length across. Toward the end of the frothing system, the hydrogen disappears into the air and is removed via air.
AAC Blocks is a separate and unique type of construction material due to its superheat, fire and sound protection, AAC blocks are lightweight and offers latest workability, versatility and stability. Its main elements include sand, water, quicklime, cement and gypsum. The chemical resistance due to the aluminium paste provides AAC with its different porous structure, lightness, and surrounding properties, totally different related to other lightweight solid materials.
When the forms are separated from the material, it is solid but still soft. It is suddenly cut into either blocks or panels, and put in an autoclave chamber for 12 hours. When this steam pressure mounting technique, once the temperature moves 190° Celsius (374° Fahrenheit) and therefore the pressure reaches eight to twelve bars, quartz sand acts with slaked lime to create the atomic number 20 salt hydrate, which provides AAC with its high strength and other important properties. Because of the comparatively low temperature used AAC blocks are not held fired brick but a lightweight real masonry unit. After the autoclaving method, the material is waiting for direct use on the construction site. Depending on its weight, up to 80% of the size of an AAC block is air. AAC’s low pressure also accounts for its low structural concentration power. It can carry payloads of up to 8 MPa (1,160 PSI), around 50% of the compressive force of regular concrete.
AAC offers unbelievable opportunities to improve building quality and at the same time decrease costs at the construction site.
AAC is built out of a mix of quartz sand and/or ground fly ash (PFA), lime, cement, gypsum, water and aluminium and is set by steam-curing in autoclaves. As a result of its unique properties, AAC is used in various building constructions, for standard in residential homes, commercial and industrial buildings, schools, hospitals, hotels and many other purposes. AAC includes 60% to 85% air by quantity.

AAC Blocks Benefits:
  1. Fire Resistant
  2. Pest Resistant
  3.  Sound Proof
  4. Earthquake Resistant
  5. Faster Construction
  6. Long-lasting
  7. Cost Saving
  8.  Versatile
  9. Non-toxic
  10. Thermal Insulation
  11. Moisture Resistance
  12. Environment-Friendly
  13. Lightweight
  14. Perfect Size and Shape
  15. High Compressive Strength
  16. High Resistance to Water Penetration
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