EVOLUTION OF AAC CONCRETE BLOCKS

EVOLUTION OF AAC CONCRETE BLOCKS AAC block is the popular building material evolved in 1920’s and started producing industrially in the same year. These blocks are light weight, Eco-friendly and cost-effective building blocks which draws its roots from 20 th century. The raw materials used for the formation of this miracle invention are cement, lime, gypsum, sand and aluminium powder. AAC bricks made the real breakthrough in the building sector from 1923. AAC products includes wall panels, blocks, floor and roof panels, and lintels. In India 80% of the construction started to use AAC blocks instead of traditional bricks. INVENTION OF AAC BLOCKS The early discovery of AAC is based on a chain of process patents. In 1880, Michaelis, a German researcher, got a patent on his steam curing processes. Czech Hoffman successfully tested and patented the method of “aerating” the concrete by carbon dioxide in 1889. Aylsworth and Dyer, two American scientists used aluminium powder an...