What Is Fly Ash Brick?

Fly ash bricks are manufactured from industrial wastes such as fly ash, cement, sand/stone dust. Fly ash bricks are nowadays used in worldwide with gaining its popularity over clay bricks.

The raw materials

Advantages

1- It reduces the dead load on structures due to lightweight (2.6 kg, dimension: 230 mm X 110 mm X 70 mm

2- Same number of bricks will cover more area than clay bricks

3- High fire Insulation

4- Due to high strength, practically no breakage during transport and use.

5- Due to the uniform size of bricks mortar required for joints and plaster reduces almost by 50%

6- Due to lower water penetration seepage of water through bricks is considerably reduced.

7- Gypsum plaster can be directly applied on these bricks without a backing coat of lime plaster.

8- These bricks do not require soaking in water for 24 hours. The sprinkling of water before use is enough

Disadvantages

1- Mechanical strength is low, but this can be rectified by adding marble waste or mortar between blocks.

2- Limitation of size. Only modular size can be produced. The large size will have more breakages.

3- It is only good for places like subtropical area or area where the climate is warm because it doesn’t absorb heat. But during cold, it is not helpful.

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