AAC block is an eco-friendly and lightweight construction material. Its full name is Auto Cloud Aerated Concrete Block. While a mixture of cement and sand (mortar) is used in the construction of the wall with ordinary brick, here a powder made of cement, sand and polymer applied as a water-based paste used to fix the brick. It can be painted directly after finishing the surface without polishing or whitewashing because the surface is smooth. There is nothing wrong doing plastering also. AAC block weighs only one-third as much as a regular brick. The brick made of gypsum, fly ash, cement, aluminium powder and limestone.
The length of this AAC block is 60 cm, the height is 20 cm. Available in 4-inch, 6-inch, 8-inch, and 9-inch sizes. Water can be saved as there is no need for continuous watering during construction and as it is a larger and lighter material the construction can be completed much faster. It is also a material that is resistant to noise, heat and fire. Its melting point is 1600 C. Earthquake resistance is higher than conventional buildings. It is available in different compressive strengths. It is best to use bricks between 3 and 4.5 Newton per mm square. Its surface is smooth as well as slightly rough.
During plastering and painting, brick with a slightly rougher surface is ideal for holding them well to the wall. If the frame structure provided by the column and beam is very suitable for the construction of walls between. If it is a direct load-bearing, column or beam-free construction, single-storey houses are preferred. Above that of course the frame structure must be provided. An AAC block of 60 cm long, 20 cm wide and 20 cm high costs around Rs. 100/-.The weight of the brick of the above size is about 16 kg. It takes about 41 bricks to build an M cube.
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