Firebrick SHA - 5 - as evidenced by its brand ?

Fireclay brick - what is it?

To produce high-quality materials - powder, fireclay and milled refractory clay, drained and burned at a high temperature.The quality of raw materials determines the future strength of the material characteristics. Apply fireclay brick kiln industry and in places where the masonry is exposed to acids and alkalis. No material capable of replacing the brick at a laying of furnaces, because it was he who gives you the ability to quickly and well to warm any room.

he produced not only rectangular, but also complex.And it allows you to build from it intricate and complex designs.Besides, there are various brands of fireclay bricks, but this later.It is always possible to decorate tiles or refractory tiles.Appearance has a sandy color, and its surface is rough, which gives it the effect of the solar surface.So it is safe to say that this is not only a practical material, but also decorative.

Key Features firebrick

Fireclay brick has the following advantages:

• withstand temperatures up to 1800 ° C;
• high thermal inertia (slow heats and cools a long time);
• high heat (heat accumulates in itself);
• resistant to temperature changes;
• resistance to environmental influences.

The disadvantages of this material include:

• not be cut because of the strength;
• difference in size is 1 cm;
• price is higher than the red brick.

Fireclay bricks are divided by the porosity of such species: particularly dense, dense, sredneplotnye, high-density, compact, increased porosity, and ultralegkovesnye brick fireclay lightweight.

Stamps: what do they mean?

Besides porosity materials are divided into grades depending on the application temperature and the physical and chemical composition: Shaq, SB, SHUS, MF, IIIA, IIIB, PB.In everyday life, often for the construction, use a type that is marked with the letter "W", and the following symbols indicates the size of, for example, brick, fireclay W-8 - 250h124h65.Manufactured items are not only direct form, but the wedge.They are used for laying semicircular arches and other structures, rounded forms.

There is also conditional on the use of the division: SA and SB - general purpose bricks (eg fireclay brick SHA-8), BCCH - ladle, broadband - domain, Shaw - cupola and SHTSU - end bilateral.

most common in private construction are fireproof bricks, general purpose, ie SA and SB.Of these, spread combustion stoves and fireplaces.Unlike SB, having a content of Al203 (28%), SHA contain a higher amount of - 30%.This means that the fireclay brick SHA-5 refractoriness has at least 1690 ° C. But fireclay bricks SB-8 has a rate of fire resistance to 1650 ° C with the other equal values ​​of porosity.

It should be noted that during the laying need to got used to the elements well, then the joints are the most delicate.Firebrick SB-5, or any other such marking is necessary to fasten a solution consisting of refractory clay, which is mixed with crushed firebrick.

This building material has earned its popularity due to the specific use and versatility in different fields of construction and industry.Simple technology of production and relatively low cost make it affordable material for masonry fireplaces and stoves.