What is fly ash?

Since the last century, scientists have known to use fly ash from coal-fired power plants as an admixture for concrete. The growing science and technology has confirmed the "magic of fly ash" in concrete technology, cement production, and unburnt brick production.

Composition of Fly Ash:

Fly ash is a mixture of aluminum oxide Al2O3, calcium oxide CaO, silicon oxide SiO2, iron oxide Fe2O3, sulfur oxide SO2 and an amount of unburnt coal.
Coal content < 6%: standard fly ash
Coal content > 6%: must use purification method to remove coal from fly ash.

Fly ash has the following physical properties:

Morphology: fly ash is a glass sphere molecule.
Density: 1.9 - 2.3 (accounting for about 65% of the specific weight of cement).
Molecular size: 1.0 – 120/μm (average input size: 20 – 30/μm).
Fineness: 2,400 – 4,000 cm2/g (Blaine fineness).

Application of fly ash:

Agriculture: Increase the water holding capacity of the soil, increase the porosity, change the pH of the soil: fly ash has 2 types, basic ash and sour ash, so it has the effect of neutralizing the acidity of the soil and providing nutrients. . . Because fly ash contains elements such as Fe, Ca, Mg, K necessary for plant growth), improves plant growth and yield, saves fertilizer, so fly ash is used as a pesticide. .
In the production of building materials: Mix Fly ash with water, Cement, gypsum, then compact it to form a mixture with anti-settlement effect.

Fly ash supplied by CCCA Co., Ltd., CCA is one of the leading companies in trading all kinds of steel slag, iron slag, mineral rocks such as Puzolan Stone, granulated limestone, limestone powder, fly ash . Our company is committed to: delivery to the foot of your project, factory, or warehouse, when customers check and receive enough goods about: quantity, specification, type, we will collect money. Commit 100% products to quality standards.

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