AAC blocks, or Autoclaved Aerated Concrete blocks, are a type of lightweight and durable building material made from a mixture of cement, lime, sand, water, and an expanding agent.
A mixture comprising the aforementioned ingredients is poured into molds and then allowed to cure in an autoclave, which creates a chemical reaction that causes the mixture to expand resulting in an aerated or porous and hard structure. Hence, the name Autoclaved Aerated Concrete.
The final product is strong, fire-resistant, and provides excellent insulation, with a host of other benefits as well, which make them a popular choice for construction projects. This article will explain in detail the 9 benefits AAC blocks offer when used in construction work.
9 Benefits of Using AAC Blocks in Construction Projects
1. High compressive strength
AAC blocks boast an average compressive strength of 3 to 5 N/mm2 compared to that of clay bricks which varies between 2.5 to 3.5 N/mm2. This makes AAC blocks significantly stronger and more durable than bricks of the same density making them a popular choice for high-rise construction projects.
2. Lightweight
AAC blocks are a lightweight alternative to traditional building materials. They weigh 3 to 4 times less than bricks and are 30% lighter than concrete, making them ideal for constructing taller buildings. This reduction in weight also helps to decrease the overall dead load of the building, making it more structurally sound.
3. Energy Efficient
AACs are known for their excellent thermal insulation properties. The tiny air pores within the blocks, combined with their thermal mass, make them highly effective at reducing heating and cooling escape within the buildings. So, both homeowners and businesses, love this!
4. Eco-Friendly
AAC blocks are a great choice for environmentally conscious builders and homeowners.
AAC blocks contain fly ash, which is an industrial waste, a by-product released from thermal power plants. Plus there are other non-toxic ingredients and their production process also emits fewer gases and consumes less energy compared to traditional red brick manufacturing.
5. High Workability
AAC blocks also offer higher workability. This implies that they can be easily cut, drilled, nailed, milled, and grooved to fit specific needs, making them a popular choice for construction projects that require precise measurements and unique shapes.
Furthermore, a single block of AAC is equivalent to six clay bricks, which means that there are fewer joints in the wall masonry. This not only reduces construction time by 20% but also reduces the amount of workforce required for a construction process.
6. Fire Resistant
AAC blocks are non-combustible in nature and can withstand high temperatures of up to 1600° C. In fact, they are fire-resistant for up to 6 hours of direct exposure, making them a popular choice for buildings prone to fires or high heat.
7. Acoustic Performance
As the AAC block is porous in nature, the sound absorption quality is superior. It offers sound attenuation of about 42 dB, blocking out all major sounds and disturbances which makes it ideal for schools, hospitals, hotels, offices, multi-family housing, and other structures that require acoustic insulation.
8. Seismic Resistant
The lightweight nature of AAC blocks makes them a popular choice for the construction of buildings in areas with high seismic activity. This reduces the overall mass of the structure thereby decreasing the impact of an earthquake on a building. Moreover, as AAC blocks are also fire resistant, this adds an extra layer of protection against accidental fires occurring due to earthquake damage.
9. Pest-resistant
AAC blocks are pet-resistant also as they are prepared from inorganic materials. This protects the structure made from them from pests such as termites, rodents, etc.
Conclusion
AAC blocks provide plenty of benefits during and after the construction of a building or any infra project. So, don’t hesitate to opt for AAC blocks for your next construction work.
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