Construction

7 Top Advantages of using AAC Blocks for Construction


17, January 2026

Today, we'll explore a somewhat popular and yet quite rare topic,

"The Building Blocks" (or "bricks").

Especially "Which is better - AAC Blocks or Red Bricks?

It sounds like an offbeat topic compared to our other recent blogs.

But it is one of the most popular topics for realtors, developers, and anyone who is generally interested in real estate and architecture.

But before we make the comparisons let's first check out our contenders,

AAC Blocks or Autoclaved Aerated Concrete blocks

AAC Blocks, developed in the early 1920s, are becoming immensely popular across both rural and urban construction. AAC Blocks are considered to be the better alternative and a more sustainable option as compared to the traditional ones including the several types of bricks.

Ranav Tranquil Haven

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What are Red Bricks?

Red Bricks are one of the popular and widely used traditional building materials crafted out of burnt clay.

Though Red bricks are widely used across the country, the recent years have seen quite a paradigm shift.

Nowadays, we can find only AAC blocks or bricks in most of the construction sites both in urban and rural regions. Besides creating AAC bricks is lesser hazardous than the traditional clay bricks, which makes it a more viable as well as eco-friendly option for building your homes.

Advantages of AAC Blocks over Clay Bricks

AAC Blocks has many advantages over Clay Bricks such as

1. Better Fire Resistance

The blocks and the materials used are extremely fire resistant. It is reported that AAC blocks can provide resistance to the flames for atleast 6 hours and upto 1200 celcius.

2. Faster and Easier Construction

One of the noteworthy features of AAC Blocks is that they are far lighter than other materials and does not compromise on strength or flexibility. It is said that they are 50 times lighter, which makes contruction faster and more efficient.

3. Earthquake Resistant

As mentioned earlier, since its stronger and tougher than regular building materials, AAC Blocks have better durability and can handle tremors or greater seismic activities accordingly compared to conventional building materials like clay bricks.

4. Energy Efficiency

As Hydrogen is formed in the small pockets while constructing AAC Blocks which greatly enhances its insulation properties. Thus it can keep the temperatures warm in winters and cool in summer. This is also one of the reasons why AAC blocks are used in almost every locale.

5. Availability

One of the major drawbacks of red clay bricks and the greatest advantages of AAC blocks is the availability. AAC blocks are available throughout the seasons, while Indian monsoons and the rains pose a threat to the creation of red bricks.

6. Pest Resistance

AAC Blocks are pest resistant, especially keeping away the common pests like rodents and termites as they are built using inorganic materials.

7. Sound and Moisture proof

As mentioned earlier, the air pores and pockets in AAC Blocks also excel in keeping out moisture and in sound reduction.

Other major advantages of using ACC blocks for construction are:-

Size:

As you know, AAC blocks are easily considered other construction blocks, including Red Bricks. As for the size, AAC blocks are available in several sizes and even in different shapes. Some of the common sizes(in length*breadth*height) that the AAC block is available are:

  • 600×200×75 mm

  • 600×200×100 mm

  • 600×200×150 mm

  • 600×200×200 mm

  • 625×240×75 mm

  • 625×240×100 mm

  • 625×240×150 mm

  • 625×240×200 mm

Design Flexibility and Workability:

As AAC blocks are lightweight bricks, they can be easily cut and molded to any design as you speak. It can be easily drilled, cut, and shaped into any required format. It can be easily installed and is easy to work with. Work flexibility is one of the major aspects of AAC Blocks gaining much popularity among construction workers.

Eco-friendly:

Yet another major aspects of AAC blocks are that it is eco-friendly and the production work of AAC blocks generate lesser wastes and residues compared to other blocks used for construction purposes. It is made of non-toxic material and is energy efficient, so it has less impact on the overall environmental reduction.

So, folks, we hope you liked the article and understood the advantages of AAC Blocks over the red clay bricks.

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Most Frequently Asked Questions?

Is AAC block good for construction?

AAC or Autoclaved Aerated Concrete blocks are one of the most innovating construction material ever made. It is easy to install, flexible to work with, less expensive, easily available, heat resistant, and earthquake resistant, making it one of the ideal blocks for construction purposes.

How much does a block of AAC cost?

The cost of an AAC block varies according to the shape and size of the block. A 4 inch AAC block may cost upto an average of Rs. 40/per block.

Is AAC block cheaper than bricks?

Yes, AAC blocks can be cheaper than bricks, as they are made out of fly ash and other cheap raw materials, making it cost less than other bricks used for construction.

What are the disadvantages of AAC blocks for home construction?

One of the major drawbacks of AAC blocks is that if they are not installed properly, they may cause cracks in the walls, which may cause further damage. Another drawback is that the price of AAC blocks can be vary according to the size and quality of the blocks.

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