Fireclay chamotte brick was named so because the products contain 70% of refractory clay, which is called chamotte. In the production process, a homogeneous mixture goes through the firing stage.
Dimensions and Weight
The described products are made in accordance with GOST 390-69. These standards require compliance with the following sizes: 250x123x65 millimeters. Among other things, on sale you can find product dimensions within 230x113x65 millimeters. Fireclay 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. Weight depends on size and porosity, so a single brick can have a mass of 2.4 to 6 kg. Fireclay chamotte brick is widespread in everyday life during the construction of furnaces for various purposes. It can be cooking or heating equipment, stoves for a bath or fireplaces. Among other things, this material is used to equip chimneys, and as for facing products, they are suitable for exterior decoration.
Consumer Reviews
Despite the fact that chamotte products belong to ceramic bricks, they are allocated in a separate category. This is due to their unique characteristics, which are appreciated by the modern consumer. Customers 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 chamotte products are simply irreplaceable, which is why you have to not pay much attention to the high cost, which pays off over time. Specialists who are faced with the task of arranging internal fire chambers and chimney systems choose fireclay refractory brick, which, due to its porous structure, accumulates heat and for a long time transfers it to the external environment. This, according to consumers, allows you to save fuel during the operation of the furnace. Due to the fact that the described products are available in different shapes and sizes, stoves can realize a wide variety of options and forms of heating equipment. This is also why chamotte products are so in demand today. If we compare with ordinary building bricks, which can undergo exposure up to 1200 degrees, then it will be covered with cracks over time, which ultimately will lead to the need for repair of the furnace installation. Therefore, experts recommend purchasing chamotte products to carry out the mentioned works. However, you should first calculate the final weight of the refractory fireclay bricks, which will determine if there is a need to build a foundation under the furnace.
Negative customer reviews
If you decide to engage in the construction of the furnace using fireclay products, then you should consider 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 not amenable to cutting, this is due to the fact that the products have 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 the products in size. The second minus that buyers emit is the difference in the dimensions of different blocks among themselves. This is found, according to consumers, even in those products that belong to the same batch. In order to exclude such a nuisance, it is recommended to check the products even when purchased. 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 during the work you will use fireclay refractory brick, it is important to know its cost. As for products of the Sh-66 brand, the size of which is 230x115x40 millimeters, the cost will be 23 rubles (per unit). If we are talking about the brand Sh-44, the dimensions of the products are equal to 230x114x45 millimeters, and the cost is 25 rubles. Brick brand -22, which has a size equal to 230x114x55, has a cost of 25 rubles. If we are talking about the SHA-5 brand, and the dimensions are 230x 114 x 65 millimeters, then the price is 27 rubles.
Fire class
Fireclay refractory brick, the price of which was indicated above, is made under different markings. Each of them indicates the area of use. For example, some products are intended for industrial use, while others are for domestic use. If you decide to purchase a brick to equip the furnace, ShA acts as the optimal brand, such products can undergo temperatures up to 1350 degrees. You can choose a brick brand SHB, it can withstand temperatures up to 1400 degrees. The latter are used most often for the reason that they have more impressive qualities of durability.
Strength Reviews
If you decide to purchase fireclay refractory brick for your own use, the dimensions of which are indicated above, then it is important to pay attention to the brand of strength. This indicator determines the resistance to deformation, bending, as well as 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 the arrangement of barbecues, fireplaces and stoves, a product that is produced under the M200 brand is perfect. Such bricks have excellent quality characteristics and reasonable cost.
Conclusion
The laying of refractory bricks on chamotte clay will provide the furnace equipment with the highest strength. However, it is important to take these materials very seriously, which will help you with the recommendations presented above.