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Why AAC block is Considered to be a Sustainable Building Material?

With the arrival of AAC (Autoclaved Aerated Concrete) blocks and their extensive use for building construction, red bricks have somehow taken a backseat. The lightweight, load-bearing, highly insulating AAC blocks are extremely durable and come in a wide range of sizes and strengths, which makes the construction process a breeze.

What are AAC Blocks?  
Invented by a Swedish scientist, Mr. John Axel Ericson, Autoclaved Aerated Concrete or AAC blocks are one of the sturdy building materials that are usually steam-cured cementitous product manufactured from a mix of pulverized fly ash, lime, cement, gypsum and an aeration agent. The composition makes them quite lightweight yet excellent on thermal insulation. Its energy efficiency and acoustic properties are quite unlike in the red bricks.

Why AAC Blocks are Sustainable Building Textile?
AAC blocks designed by the UAL Industries under the brand name KONARK are considered highly sustainable as a building material. Here’s why.

Structural capability: The compressive strength of AAC is very good. Although it is one-fifth of the density of the normal concrete, AAC blocks come with double bearing strength and load-bearing capability. Again it is way lighter than the traditional bricks, therefore, easier and cheaper to transport. Usage of AAC blocks significantly reduces overall dead load of a building, thereby allowing construction of taller buildings at an ease. Being extremely lightweight, it also reduces the mass of a structure, which decreases the impact of an earthquake on a building.

Fire and pest resistance: Another important aspect that makes autoclaved aerated concrete blocks a sustainable material is its exceptional resistance to fire and vermin. It’s inorganic, incombustible and does not actually explode in any conditions. No doubt, these are quite apt for the fire-rated applications. Even AAC blocks also come with fire ratings depending on the thickness of the blocks or panels, which can withstand fire up to 6 hours of direct exposure. Due to its structural composition AAC blocks are not damaged by termites and other pests. Simultaneously, it does not attract rodents or other pests.

Environmental impacts: AAC blocks have lower embodied energy per square metre which is not available in other concrete alternatives. As a result, impact of greenhouse gas emission is considerably less on the AAC Blocks. At the same time, AAC has much higher insulation value, which results in the reduced heating and cooling energy consumption. AAC has some significant environmental advantages over conventional construction materials, which ensures their longevity and insulation capacity. What’s more important is that total energy consumption for producing ACC is much lesser than what it takes to produce other building material. And, it, reduces 30% of environmental waste when it is used. Considering its environmental impacts, autoclaved aerated concrete is a better choice for the building as well as environment.

Non-toxicity and breathability: Being aerated, the nature of the AAC blocks facilitates breathability and there is no toxic substance present in the final product. As a result, AAC blocks are ideal material for homes for the chemically sensitive.

The Prime Takeaway
With AAC  blocks in place, building a beautiful house is never a big deal. In fact, using AAC blocks can keep your house well protected from weather conditions while providing sustainability from all aspects.