What is Fly Ash?
When coal is burned to generate electricity, generally it is ground into a fine powder, blown in the boiler, and burned as a dispersed powder. What ever doesn't burn, whooshes through, is quenched and is collected as flyash. It is called flyash because it flies through the boiler. The ash that stays behind is called bottom ash. When that type of boiler was first developed, it was a great innovation because some of the ash was gotten rid of by going up the stack. They don't let that happen any more, it is all collected.
When the ash is quenched, it remains glassy, and is pozzolanic, that is it will react with lime to form cementicious material. Just like the ancient Romans used pozzolans of volcanic ash and lime in their construction.
Because flyash is a pozzolan, it is a good additive to concrete, where it can replace some of the cement. That can only be done if the flyash is low in unburned carbon. If it is high in carbon all you can do is landfill it.
A 1000 MW power plant will burn about 500 tons of coal an hour. At 8% ash, that is about 45 tons of ash per hour (the ash plus 10% carbon). We sell the ash to concrete producers where they replace some of the cement in their mixes, yet get a concrete that is stronger and cheaper and more sulfate resistant.
To make a ton of cement, 2 tons of minerals need to be mined, and a ton of CO2 is emitted into the atmosphere. About 20-30% of the cement in concrete can be replaced on a 1-1 substitution with flyash. So for each ton of flyash recycled, a ton of CO2 is not emitted into the atmosphere.
We are pioneers of Fly Ash supply from Mundra/Kandla port. We have been exporting Fly Since 2005 and have been supplying it across globe from Middle East to Far East to African Continent. It’s one of our specialized product which we have mastered over the years. Our brand MITHIPOZZO is synonyms to Fly Ash in International Market.