The refractory chamotte brick was named so due to the fact that the products contain 70% refractory clay, which is called chamotte. In the production process, a homogeneous mixture goes through the firing stage.
Dimensions and weights
The products described are manufactured in accordance with GOST 390-69. These standards require compliance with the following dimensions: 250x123x65 millimeters. Among other things, on sale you can find the dimensions of products within 230x113x65 millimeters. Chamotte brick has a granular structure, which has a sandy-yellowish tint. As for the remaining 30% of the volume, they are graphite and coke powders. This product has a large heat capacity, as well as high thermal inertia. The weight depends on the size and porosity, thus, one brick can have a mass of 2.4 to 6 kg. Brick refractory fireclay is widely used in everyday life in the construction of furnaces for various purposes. This can be cooking or heating equipment, sauna heaters or fireplaces. Among other things, chimneys are equipped with this material, and as for facing products, theysuitable for outdoor decoration.
Consumer Reviews
Despite the fact that fireclay products are ceramic bricks, they are in a separate category. This is due to their unique characteristics, which are appreciated by the modern consumer. Buyers purchase these products, not paying attention to the high cost, which is higher compared to facing or building material. As home craftsmen emphasize, in some cases, fireclay products are simply irreplaceable, which is why you have to ignore the high cost, which pays off over time. Specialists who are faced with the task of arranging internal furnaces and chimney systems choose refractory fireclay bricks, which, due to their porous structure, accumulate heat and release it to the external environment for a long time. This, according to consumers, saves fuel during the operation of the furnace. Due to the fact that the described products are produced in different shapes and sizes, stove-makers can implement a wide variety of options and forms of heating equipment. This is also why fireclay products are so in demand today. If we compare it with ordinary building bricks, which are capable of being exposed to up to 1200 degrees, then it will crack over time, which will ultimately lead to the need to repair the furnace installation. Therefore, experts recommend acquiring fireclay for the mentioned work.products. However, you should first calculate the final weight of the refractory fireclay brick, which will determine whether there is a need to build a foundation for the furnace.
Negative customer reviews
If you decide to start building a furnace using fireclay products, then you should take into account some of the negative characteristics of this material. However, each of the minuses can be called very relative. Consumers quite often note that the blocks are completely uncutable, this is due to the fact that the products have a very high strength. In defense of fireclay bricks, experienced stove-makers argue that the voiced minus can be eliminated by pre-laying the furnace without mortar. In this case, there will be no need to fit products in size. The second minus that buyers highlight is the differences in the dimensions of different blocks among themselves. This occurs, according to consumers, even in those products that belong to the same batch. In order to eliminate such a nuisance, it is recommended to check the products before purchase. The third feature is expressed in high cost. However, it is also relative, because it is due to the excellent quality of the brick.
The cost of fireclay bricks
If you will use refractory fireclay bricks during the work, it is important to find out its cost. As for products of the Sh-66 brand, the size of which is 230x115x40 millimeters, the costwill be equal to 23 rubles (per item). If we are talking about the Sh-44 brand, the dimensions of the products are 230x114x45 millimeters, and the cost is 25 rubles. A brick of the Sh-22 brand, which has a size of 230x114x55, has a cost of 25 rubles. If we are talking about the ShA-5 brand, and the dimensions are 230x114x65 millimeters, then the price is 27 rubles.
Refractoriness class
Fireclay refractory brick, the price of which was indicated above, is produced under different markings. Each of them indicates the area of use. For example, some products are designed for industrial use, while others are for domestic use. If you decide to purchase a brick for arranging a furnace, SHA is the optimal brand, such products can withstand temperatures up to 1350 degrees. You can choose a brick brand ShB, it can withstand temperatures up to 1400 degrees. The latter are the most commonly used for the reason that they have more impressive durability qualities.
Strength Reviews
If you decide to purchase fireclay refractory bricks for your own use, the dimensions of which are indicated above, then it is important to pay attention also to the strength grade. This indicator determines the endurance to deformation, bending, and compression. This parameter is calculated based on the load that the product is able to withstand without collapsing. As for fireclay bricks, this figure can reach M500. However, according to experienced stove-makers, for arrangingbarbecues, fireplaces and stoves, a product that is produced under the M200 brand is perfect. Such bricks have excellent quality characteristics and reasonable cost.
Conclusion
Laying refractory bricks on fireclay clay will provide the furnace equipment with the highest strength. However, it is important to approach the choice of these materials very seriously, which will help you with the recommendations presented above.
