A Comparison Between Green AAC Blocks And Red Clay Bricks

Green AAC Block

Previously in construction, the red clay bricks were a cheaper option and a go-to material for builders. AAC (Autoclaved Aerated Concrete) blocks were introduced, which offered unique features. The blocks were not being used widely for construction due to their high cost. The choice between red clay bricks and AAC blocks was a main decision for builders.

Today, the red clay bricks have become 20% more expensive than the AAC blocks due to the industry’s reliance on labour and fuel. The AAC blocks are produced using energy-efficient methods and require less labour and fuel. As the cost of labour and fuel is rising, the AAC blocks offer cost stability. The AAC block has emerged as a cost-effective and practical solution.

The AAC blocks are a preferred choice for construction due to their properties like superior thermal insulation, lightweight construction, and fire resistance. The raw materials used to make the blocks are cement, lime, fly ash and aluminium powder. These raw materials are readily available, and their prices are less volatile. 

Red clay bricks vs AAC blocks

The red brick production process requires manual labour to dig the clay, give shape to the bricks and operate the kilns. Coal or wood is used as fuel in the kilns, which have become more costly. This has driven up the prices of red clay bricks.

The manufacturing process used for AAC blocks minimises the requirement of labour and fuel. This has reduced their cost, and now the blocks are seen as an affordable and appealing option. The blocks are viewed as an optimal choice in modern construction.

Buildings made using red clay bricks tend to retain the heat, which reduces energy efficiency. The red clay bricks do not insulate the building effectively. Additional insulation is required, which increases the construction costs.

The AAC block offers excellent thermal insulation, and buildings constructed using it maintain cooler interiors. It can maintain a temperature of 5° C below the outside temperature in hot weather. Natural cooling reduces the need for air conditioning and reduces the electricity bill by 30%. The blocks are ideal for regions with hot temperatures as they can significantly reduce the cooling load.

The production process of red clay bricks uses labour-intensive methods, which may involve poor working conditions and child labour.

Now the construction industry follows sustainable practices, labour regulations and strict environmental impact rules. The AAC block manufacturing process involves an automated process that follows labour laws and provides safer working conditions. 

The production process of red clay bricks has harmful effects, such as the removal of soil, which can lead to land degradation and deforestation. The kiln consumes coal or wood, which releases carbon dioxide, thus increasing the air pollution.

The AAC blocks are made from fly ash, which is a waste product of thermal power plants. It leads to sustainable construction and environmental benefits. The green AAC block uses fewer natural resources and is recyclable.

AAC blocks offer advantages like fire-resistance, sound insulation, and pest resistance, which makes them an eco-friendly option in construction.