AAC consists 80% air by volume, making it lightest available walling Material (weights ¼ that of clay bricks).
Formed as a result of reaction of Aluminum on a proportionate blend of Lime, Cement & FlyAsh, the hydrogen gas that escape creates millions of tiny air cells giving it a strong honeycomb like structure.
It is further strengthened by High pressure steam curing in Autoclaves.
Invented in 1932, AAC now accounts for 40% of all construction in UK & 60% of all construction in Germany.
The rise in demand in India has been so phenomenal that in last 3 years the production has increased by almost 500%.
It weighs approximately 1/3 of the weight of normal walling materials. AAC provides significant benefits where weight is a concern in building design. AAC is the perfect material for renovations. It causes dead weight reduction of the building and hence the reduction in structural costs.
Highest thermal ratting in the industry. Thus provides well insulated interiors, keeping out warm air in summers and cold air in winters. AAC reduces air conditioning cost by 20%. AAC provides superior thermal insulation due to its cellular structure and results in substantial power savings where air conditioned needs is necessary.
Least carbon footprint with a potential offset of 0.8 tonne CO2 per m3. A Green Building material – contributes to LEED rating.
Earthquake forces on structure are proportional to the weight of the building, hence AAC shows excellent resistant to earthquake forces. Regions of the seismic activities like exclusively use AAC. It has been proven to withstand wind loads of category 5 tropical storms.
AAC is 100% green building material & is a walling material of choice in LEED certified buildings (ITC centre the highest rated green building has been built using AAC) It is most energy and resource efficient in the sense that it uses least amount of energy & material per m3 of product. Unlike brick manufacturing process which use precious layer too-layer agricultural soil, AAC uses fly ash (65% to 70% of its weight), thus provides the most constructive solution to the nation’s fly-ash utilization problem.
Its unique cellular structure provides excellent fire rating. Due to this Cellular structure AAC blocks do not disintegrate even in fire. It is best in class fire rating of 4 hours. The melting point of AAC is over 1600 degree Celsius, more than twice the typical temperature in building fire 650 degree Celsius.
With solid wall construction and finishes, there are fewer if any, cavities for insects and rodents to dwell in. Termites and ants do not eat or nest in AAC. Being made up of inorganic minerals, it does not promote growth of molds.
High pressure steam-curing autoclaving process gives AAC unmatchable strength to weight ratio, higher than even M 150 concrete, and far exceeds the Indian building Code Requirements.
Being light weight AAC drastically reduces the weight of the building. Resulting into reduction in steel (up to 27%) and cement (up to 20%) structural cost savings. Being 8 times the size of a clay brick, AAC wall construction involves 1/3rd of the joints, thus an overall mortar savings up to 66%. Its automatic manufacturing process gives AAC an exceptional dimensional accuracy &smooth surfaces, eliminating need of three-coat plaster walls and allows for a final 6mm skin coat (putty/pop).