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Fly-ash

Fly-ash

Ltd. "Aleksinskij keramzitovyj zavod" offers a unique Russian product: Thermoactivated fly-ash of brown coal near Moscow coal basin.

This ash contains a large number of high-level (amorphous) oxides of silicon and aluminum in the form of subspacing porous agglomerates. This distinguishes it from the ash of other coal basins, which are mostly fused aluminosilicate glass, the activity of which is orders of magnitude lower than that of amorphous oxides.

In addition, fly-ash of brown coals of the Moscow basin do not contain virtually dead-burned calcium oxide and free magnesium oxide, adversely affecting the durability of concretes and mortars.

The chemical composition of the fly-ash is close to natural clays. The main components of its elements are silicon, aluminum and iron.

Indicative contents of basic oxides in the fly-ash:

Oxide

Content, weight %

SiO2

50

AL2O3

39,3

FeO+FE2O3

4,6

CaO

2,7

MgO

0,5

TiO2

1,4

Na2O+K2O

1,1

SO3

0,1

p.p.p.

2,5

 

Unlike ash and slag containing relatively large pieces of sintered and fused ash, the fly-ash is characterized by a grain size distribution closed to that of cement.

Manager of development direction of “fly-ash”
Aleksandrova Anna Andreevna
Phone: +7-920-775-06-86
e-mail: promo@keramzit-aleksin.ru

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Address: 301362 Tul'skaja obl. g.Aleksin, ul. Naberezhnaja, d.40a
Phones: +7 (920) 7-555-555, +7 (48753) 4-01-53
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