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Fly Ash Brick

 

Admin | July 01 2022

Why Fly ash bricks?

India is a big source of fly ash generation with an annual output of over 220 million tons.

Fly Ash brick is a unique win-win solution for the useful disposal of fly ash which is generated as a waste by-product of Coal-fired power plants and cost reduction in the construction industry by use of concrete precast fly ash bricks.

Indian Fly ash is one of the best lots in the world and calls for more aggressive promotional efforts at all levels to maximize its usage in the Construction industry.

What is a Fly ash brick?

  • Fly-ash bricks are a building component in civil engineering; mostly, they are masonry materials.
  • Generally, class C and class F- fly ash, sand/stone dust, and water are the constituents of Fly ash bricks.
  • Fly ash bricks are also termed as ‘self-cementing’ bricks and are also an eco-friendly product.
  • Sometimes cement is also added to it as a bonding material to increase its strength.


Advantages of Fly ash Bricks :

  • Highly economical.
  • Environmentally friendly
  • Fly ash has very small particles which makes the concrete highly dense and reduces the permeability
    of concrete. It can add greater strength to the building.
  • The concrete mixture generates a very low heat of hydration which prevents thermal cracking.
  • Fly ash concrete is resistant to acid and sulphate attacks
  • The shrinkage of Fly ash concrete is very less
  • The use of fly ash gives concrete good workability, durability & finish.


Advancements in Fly ash usage in concrete:

  • Today, there are at least two ways to make fly ash more beneficial:

A dry process that involves triboelectric static separation and a wet process based on froth flotation.

  • These procedures generally lower the carbon content and the LOI of fly-ash.
  • The cost of an additional storage bin should be easily covered by the reduction in the cost of the concrete and the added benefits to the concrete.


Advantages of fly ash in Hardened Concrete:


Because fly ash contains larger or less reactive particles than portland cement, significant hydration can continue for six months or longer, leading to much higher ultimate strength than concrete without fly ash.


Over the past few decades, concrete has revolutionised the global construction activity. With sustainable eco-friendly Fly ash supporting the transition to low carbon energy concrete, the world will certainly be a better place to live.



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