A microsphere, which has many uses, is a hollow sphere ranging from 20–50 to 400–500 microns in size (most commonly 100–250 microns).
Dry fly ash is a finely dispersed material usually consisting of particles ranging from under a micron to 0.14 mm. It is formed as a result of solid-fuel combustion at thermal power plants and is collected by an electrostatic precipitator and then screened by an ash separator.
Ash slag mixes are mixes of ash and slag with slag sand (grains of 0.13 up to 5 mm) and slag gravel (grains of above 5 mm).
Wet fly ash is a finely dispersed material of 3–315 micron with a moisture content of 15%.
Coal slag is a mineral residue of solid-fuel combustion.
Granulated blast-furnace slag has a glassy structure and considerable hardness and brittleness. Slag is formed in the blast furnace from flux, coke ash, and iron-bearing materials.
Blast-furnace slag has a crystalline structure and high strength and viscosity. This type of slag is formed in the blast furnace from flux, coke ash, and iron-bearing materials, and is not subject to granulation.
Major consumers of these products are the ceramic, construction, cement, chemical, and oil & gas industries.