What Is AAC Block?

January 11, 2022
What Is AAC Block

When creating your ideal home, consider using eco-friendly materials to help the environment while also saving money. For example, burnt clay bricks, a traditional building material, are deemed inferior because of the environmental problems they bring. This is why Autoclaved aerated concrete blocks (AAC blocks) are revolutionary building materials utilized worldwide. AAC blocks are becoming increasingly popular as a low-cost, long-term replacement for conventional building materials worldwide. 

People often do not know what is AAC Blocks, but they are becoming increasingly popular as a low-cost, long-term replacement for conventional building materials worldwide. As a sustainable construction material, it is composed of aggregates of calcined gypsum/, quartz sand, lime, Portland cement, and aluminum powder. 

AAC Blocks are foam concrete blocks that have been prefabricated. The concrete is autoclaved after it has been mixed and formed to give it its distinct properties. AAC bricks are in high demand due to their amazing strength, load-bearing capacity, and thermal insulation.

Characteristics of AAC Blocks

Colour: Greyish white

AAC Block size: 50% lighter than the red bricks.

Fire-resistance: Depending on the thickness, anywhere from two to six hours

Energy Optimization: a decrease of 25% in cooling costs

Temperature Efficiency: A threefold increase over clay bricks

Water Absorption: Only about 10% of its total weight is in water

Noise Absorption: 42 decibels (estimate)

Size and Costs

Thanks to autoclaved aerated concrete manufacturers, AAC block size and strength are available in a wide range. AAC blocks are priced between Rs 2,00 and Rs 3,500 per cubic meter depending on the quality and quantity. Each manufacturer’s AAC block is priced differently and comes in various shapes and sizes.

In today’s age of environmental awareness, the building industry has seen technological improvements, including the use of new and sustainable construction materials. 

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AAC Block Advantages

Better construction and workability

AAC blocks are 50% lighter and ten times bigger than regular bricks. Simple installation and necessary flexibility make modifications, cutting, shaping, etc., simple. In addition, they are easier to lay and faster to assemble. Finally, the lightweight blocks are easy to move, reducing total logistics and shipping costs compared to regular bricks.

Earthquake And Fire-Resistant

The AAC bricks develop strength throughout manufacture, making the finished construction durable. Ones built with AAC blocks can withstand larger earthquake loads than structures built with regular bricks. Compared to other building materials, it is non-combustible and gives up to six hours of fire resistance depending on block thickness and up to 1,200°C. Thus, it is vital for fire safety.


AAC blocks are constructed from natural, non-toxic raw materials with minimal waste. It prevents rot and mould growth by using non-biodegradable materials. 

AAC Block Disadvantages

1. The price per unit of AAC block is high, but the entire construction cost is low because it requires minimal cement mortar to install.

2. As AAC blocks are brittle, they require special care than red clay brick when handled and transported.

3. Using AAC alone would necessitate very thick walls. So many builders opt for the old-fashioned way of adding a layer of insulation around the building.


To get the best AAC blocks in the market and installation services, there is no one better than Perlcon. Working for so many years, they are experts in this stream of construction. Let Perlcon be your number one choice when it comes to your home.