Among the many varieties of facing material, fireproof brick firmly took its place. The need for it is closely related to special operating conditions, which has become the impetus for creating several types of products of this class with subsequent labeling. It is successfully used for interior decoration of places with a high temperature regime or the presence of fire. At home, such places include furnace, stoves and fireplaces.
Types of refractory brick.
- Shamotic brick.
- Quartz brick.
- Other types of refractory brick.
In the manufacturing process, special varieties of clay (shag) are used, which withstand high temperatures. Production technology provides for its burning. So that the finished brick does not give cracks, the percentage of the chamotis should be at least 70%, the remaining 30% is assigned to mineral additives (quartz, coke, graphite). Some of its species have completely natural components. For home use, it is almost impossible to find a shameful brick replacement. Unlike ordinary red ceramic brick, refractory warms up faster and cools long.
Manufacturers for the convenience of choosing raw materials were accepted by marking of products in the form of the letter “Sha” with a nearby number. Positive characteristics, such as resistance, in an acidic or alkaline environment make brick in demand in many areas of industry. The most purchased stoves for furnaces and fireplaces are PB5 products, which withstand a temperature of 1300 ° C, and Sha5, resistant to a temperature of 1600 ° C. PB5 has a rough appearance, it is much cheaper, so it is used as a black version. Sha5, unlike its analogue, is perfectly even, it does not require additional finishes.
The stove -laying masters believe that quality products should be rinking like a bell when hit, and have metal spots indicating a good firing. A deaf sound indicates a violation of manufacturing technology, and, accordingly, marriage. The ball brick has a granular structure with a rough surface. For the convenience of masonry, manufacturers diversified the number of forms of products manufactured.
The percentage of refractory clay in products is very small. Its main component is quartz or sandstone. The limited use of this type of bricks is associated with their instability to alkalis and acids. After finishing processing, they have characteristics akin to sandstones.
Carbon and main brick have increased refractory properties. They do not lose their shape with huge temperature loads, without which heavy industry, for example, steel production, does not.. The strength of carbon products is given by a high percentage of carbon, represented by graphite. The main bricks include magnesite and dolomite products used in metallurgy.
External decor of the hearth.
The choice of the brand of refractory material is significantly affected by the estimated temperature in the working area and the chemical composition of combustible substances. Time has shown that such attractive and reliable material as clinker brick can be successfully used for the external design of fireplaces, barbecue and other devices, which can be a home. For facing work and the masonry of the chimney, it is recommended to purchase a special fireplace brick, which is distinguished by a variety of colors and the shape of the products. A spectacular novelty in the market was the appearance of a fireplace glazed brick.
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