Buy and sell fly ash – Pump suction machine
The fly ash vacuum cleaner is a product introduced by Tay Do to customers. In industrial parks, cement factories nationwide. Tay Do is pleased to cooperate with domestic and foreign enterprises. In the fields of trading cement, fly ash, slag, …
Tay Do provides services of pumping, transporting, buying and selling blowers, silos containing fly ash, cement and slag.
Fly ash
Fly ash is an active mineral pozzolan. Used as an admixture for high strength concrete. Fly ash is flue gas dust in the form of fine particles obtained from the combustion of coal fuel in coal-fired power plants. Waste discharged from the combustion chamber through the factory chimney. Fly ash is recovered from the chimney through a refining boiler system to remove unburnt coal (carbon) components.
The composition of fly ash usually contains silicon oxide, aluminum oxide, calcium oxide, iron oxide, magnesium oxide and sulfur oxide. May also contain trace amounts of unburnt coal. As well as other active mineral admixtures for concrete such as silicon soot. Fly ash is a kind of artificial pozzolan with the main ingredients creating the pozzolan effect being silicon oxide, aluminum oxide contained in fly ash. The content of unburnt coal in fly ash must be less than 6%. If the amount of unburnt in the fly ash is > 6%, a purification measure must be taken to remove the unburnt coal from the fly ash. The content of aluminum oxide, silicon oxide and iron oxide in fly ash must be > 70%.
Class F fly ash
Class F fly ash is a by-product from the waste dust of coal combustion (coke). Class F fly ash is fly ash containing less than 7% lime (CaO). In its composition are added iron oxide, vitreous silica (silicon oxide), aluminum oxide and sodium silicate (water glass). Class F fly ash is a more suitable fly ash than grade C for high strength concrete. Class F fly ash is used at a reasonable dose, about 10-15% of the amount of cement used. To make concrete mortar, usually for concrete with a strength of about 40-60 Mpa (400-600 kG/cm2 (concrete grade 400-600)).
Fly ash type C
Class C fly ash usually contains more than 20% lime (CaO). The high lime content reduces the effectiveness of the pozzolanic effect of this fly ash. Class C fly ash is a product from waste dust from the burning of young peat.
Contact for consultation and direct quote: 0909 774 600 VND
