Overview

Fly ash brick (FAB) is a building material, specifically masonry units, containing class C fly ash and water. Compressed at 28 MPa (272 atm) and cured for 24 hours in a 66 °C steam bath, then toughened with an air entrainment agent, the bricks last for more than 100 freeze-thaw cycles. Owing to the high concentration of calcium oxide in class C fly ash, the brick is described as "self-cementing". The manufacturing method saves energy, reduces mercury pollution, and costs 20% less than traditional clay brick manufacturing.

Advantages

High Fire Insulation
Due to high strength, practically no breakage during transport and use.
Due to uniform size of bricks mortar required for joints and plaster reduces almost by 50%.
Due to lower water penetration seepage of water through bricks is considerably reduced.
Gypsum plaster can be directly applied on these bricks without a backing coat of lime plaster.
These bricks do not require soaking in water for 24 hours. Sprinkling of water before use is enough.

Fly Ash Brick vs Clay Brick

Better strength
Low water consumption
Speedy work
Save Natural Resources
Mechanisation in production
Uniformity in colour and shape
Smooth finishing
No plastering Required
Less Leaky
Minimum Wastage

Fly Ash Brick vs Red Brick

Better strength
Low water consumption
Speedy work
Save Natural Resources
Mechanisation in production
Uniformity in colour and shape
Smooth finishing
No plastering Required
Less Leaky
Minimum Wastage

Salient Features

High Strength
Eco friendly
Low water absorption
Dimensional accuracy
Durable
Low density