Flyash collected by pollution control devices can be used:

Flyash, a byproduct of burning pulverized coal in electric power generating plants, is primarily used in the concrete industry due to its pozzolanic properties. When flyash is mixed with water and lime, it reacts chemically to form compounds that contribute to the strength and durability of concrete. This use not only enhances the structural integrity of concrete but also offers environmental benefits by reducing the need for cement, which has a high carbon footprint. Incorporating flyash into concrete can improve workability, reduce shrinkage, and increase resistance to aggressive chemicals, making it a highly valuable additive.

While flyash can have applications in other industries, such as insulation and road construction, its most recognized and widely accepted use is within concrete production. This is primarily due to the specific properties of flyash that contribute positively to the performance of concrete, making it an essential material in modern construction practices.