AAC (Autoclaved Aerated Concrete) blocks are made from a unique mixture of cement, lime, sand, fly ash, and a rising agent (aluminum powder). After mixing, the slurry is poured into molds, allowed to rise, and then cured in an autoclave at high pressure and temperature. This process results in lightweight yet durable blocks with excellent thermal and acoustic insulation.
Scientific precision ensuring superior quality at every stage
High-quality raw materials are carefully selected and proportioned: cement, lime, sand, fly ash, and aluminum powder.
Aluminum powder undergoes controlled chemical reaction with alkali, generating hydrogen gas bubbles that uniformly expand the mixture.
Once the foam achieves semi-solid consistency, the hardened cake is cut into precise block dimensions using advanced multi-wire cutting technology.
Blocks undergo high-pressure steam curing in autoclave chambers at 190°C and 10-12 bar pressure for maximum strength development.
Each batch undergoes rigorous testing including compression strength testing, water absorption analysis, and dimensional verification.
Finished blocks are stacked, strapped, and palletized using automated systems ensuring safe and efficient delivery to construction sites.
The key to superior AAC block quality and performance
Autoclaving creates stable calcium silicate hydrate crystals (C-S-H), resulting in exceptional compressive strength that exceeds conventional blocks by 3-4 times.
The autoclaving process creates a microporous structure that provides superior thermal insulation, reducing energy consumption by 30% compared to conventional materials.
Autoclaving prevents thermal stress and ensures uniform density distribution, maintaining dimensional accuracy (±2mm) and long-term stability for 60+ years.