What is fly ash made up of?
The exact components of fly ash can vary depending on the source and composition of the coal being burned. However, all fly ash includes significant amounts of calcium oxide, aluminum oxide, and silicon dioxide.

Is fly ash eco-friendly?
Fly ash is not environmentally friendly. It is a waste byproduct of combusted coal, and it's generally considered an environmental hazard. However, by reusing or recycling the fly ash to make concrete products, the impact of fly ash on the environment can be reduced, instead of simply sending this hazardous waste to the landfill.

What are the application areas of fly ash?
Its application fields are very extensive, mainly including the following aspects:

Concrete industry:
Fly ash can be used as an admixture for concrete, mixed with cement, sand, aggregates, etc., to manufacture concrete and cement products. Adding fly ash can improve the workability, durability, and mechanical properties of concrete, reduce thermal and shrinkage cracks, and enhance the impermeability and sulfate resistance of concrete.

Roadbed engineering:
Fly ash can be used as roadbed filling material and roadbed improvement material, for constructing roadbed engineering such as highways, railways, airport runways, etc. Adding fly ash can improve the strength, stability, and durability of the roadbed, reduce the settlement and deformation of the roadbed, and extend the service life of the pavement.

Environmental engineering:
Fly ash can be used as an environmentally friendly filler and building material for the treatment of solid waste, sewage, sludge and other environmental pollutants. Adding fly ash can adsorb pollutants, stabilize pollution sources, improve environmental quality, and achieve resource utilization and recycling.

Other industries:
Fly ash can also be used in industrial fields such as glass manufacturing, ceramic manufacturing, refractory materials, fertilizer production, metal smelting, etc., as raw materials or additives to improve product performance and quality, reduce production costs and energy consumption.