Fly is a by product of coal based thermal power station generated by the combustion of pulverized coal. Fly Ash is a fine, grey amorphous powder, rich in silica & alumina and spherical in shape. The properties of Fly Ash may vary widely, both physically and chemically, depending upon the nature of coal, the efficiency of coal combustion process and the selection process.
Fly ash is a fine, glass powder recovered from the gases of burning coal during the production of electricity. These micron-sized earth elements consist primarily of silica, alumina and iron. The difference between fly ash and portland cement becomes apparent under a microscope. Fly ash particles are almost totally spherical in shape, allowing them to flow and blend freely in mixtures. That capability is one of the properties making fly ash a desirable admixture for concrete.
Applications of Fly Ash
- Ready Mix Concrete
- Asbestos Products Manufacturing
- Cement Manufacturing
- Bricks & Blocks Manufacturing
- Builders & Contractors
- Precast Manufacturing
- Plaster & Masonry Works
- Land Fill & many more
Application Advantages
- Better Work ability
- Reduces Permeability
- Reduces Heat of Hydration
- Improves Sulfate & Chloride Resistance
- Reduces Risk of Alkali Aggregate reaction
- Increase long term Strength
- Better concrete Finish
- Reduces Shrinkage
Advantages of Fly Ash in Concrete
- Fly Ash is a Pozzolan
- Improves concrete work ability and lowers water demand
- Sulfate and Alkali Aggregate Resistance
- Rise in compressive strength over time
- Environment friendly
