Calculation of the weight of fireclay bricks
Construction materials should only be used with strict consideration of the load on the foundation. That is why you should carefully monitor the weight of fireclay bricks. In addition, the organization of the transportation of products depends on this.
Peculiarities
SHA-8 and SHA-5 are the two most frequently used options for fireclay bricks. They are obtained by firing a clay mixture of a certain shape with significant heating. For the production of the product, a combination of kaolinite with other minerals is used. The technology implies that a certain amount of aluminum and silicon oxides must be present in the finished composition. The two brands of fireclay bricks mentioned above are widely used for:
- installation of stoves and fireplaces;
- chimney construction;
- lining of smelting furnaces at metallurgical plants.
Selecting the composition of refractory bricks, technologists have learned to influence not only its thermal resistance. Differences in chemical composition cause differences in density (specific gravity). So, 1 pc. fireclay bricks category SHA-5 weighs 3.4 kg. Moreover, its linear dimensions are strictly prescribed in state standards and are 230x114x65 mm. In accordance with GOST 390, a brick measuring 250x120x65 mm must have a mass of 4 kg.
Standard fireclay products
GOST 390-96 also prescribes the mass of bricks stacked on 1 pallet. It can vary from 1350 to 1600 kg. This implies the laying of 385-400 pieces of finished products. Mass of one cubic meter m of refractory bricks ranges from 1745 to 2050 kg. Regardless of the total weight of 1 cu. m should include exactly 513 pieces.
Characteristics by brand
When choosing fireclay bricks, there is no need to calculate the mass of products using complex formulas. It is enough to know the specific technical grade of the finished product. So, a lightweight brick of category ШБ 5 should weigh 3.5 kg. It is used to decorate stoves, barbecues, fireplaces and barbecues. Fireclay of category SHA 5 has a mass of 3.4 kg. It is intended for individual residential construction.
Blocks ША 5 and ШБ 5 must have the same size - 230х114х65 mm. Blocks ША 6, designed for laying out thermal and heating equipment, are also produced in standard dimensions - 230x114x40 mm. Moreover, the mass of such a product is 3.4 kg. The heaviest products - ША 8. They are needed for the formation of internal masonry in heating furnaces and smoke ducts.
Calculation example
Suppose it is planned to build a furnace with a height of 2400 mm (with a base of 24 bricks). Each row has a height of 70 mm, and 300 mm is subtracted from the planned height for "cutting". In total, there are 30 rows of masonry, and after multiplying by 2/3 (the usual proportion in the construction of "Dutch women"), only 20 rows will remain. The result is 480 bricks (plus 50 for "cutting").
If you order fireclay brick ШБ-5 straight, then 1 pallet will contain 385 blocks with a total weight of 1309 kg. The total demand in this case is 530 bricks with a total mass of 1802 kg. It can be concluded that you need to use 1.37 pallets of building blocks. You can bring them in a Gazelle car, but the car will be overloaded.
If you order direct fireclay ШБ-8, 1 pallet will contain 297 blocks with a total weight of 1188 kg. The weight of a single item will be 4 kg. Thus, 530 pieces will weigh 2120 kg. Therefore, you will have to order a full-fledged truck to deliver a batch of fireclay bricks to the facility.Of course, in reality, the dimensions of the stoves and the number of blocks used for masonry change, it is also worth considering the chimney, but the general principle of counting remains unchanged.
You will learn more about refractory fireclay bricks from the video.
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