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Refractory bricks measures

The refractory bricks: description

A refractory brick is a material that withstands very high temperatures, up to 1500 ° C. The refractory bricks have no alterations. They are resistant and efficient. The refractory bricks not only have a high thermal resistance at very high temperatures, but they do not change their volume and do not deform. Brick is a structural or facing material, depending on the use. The composition of the refractory bricks consists in the union of some elements, such as clay and alumina and silica. Precisely this composition is ideal for storing heat and then releasing it slowly and continuously, in order to optimize not only performance, but also consumption. Sometimes, it is necessary to insulate the refractory bricks adequately, for a truly optimal and functional performance, both thermal and mechanical, due to the thin appearance of the materials that make up the refractory bricks.


The specialized firms present the various forms of refractory bricks: strips, wedge-shaped, antiqued. In short, the choice is vast, it depends on the use we want to make of it. The refractory bricks are useful for covering the parts exposed to fire and high temperatures, such as fire floors and sides of wood ovens. Refractory bricks can be found on the market, at building materials stores or at stove and fireplace dealers. The refractory bricks are used to make the interior of ovens, barbecues, fireplaces, flues, stoves or boilers, hobs and wood-burning ovens. They are cheap: prices are around 1 $, however 20 refractory bricks are enough per square meter to make a barbecue. In the field of building constructions, refractory bricks are used as normal bricks, with a careful eye during installation. So pay attention to refractory grouts and mortars.

Measurements of refractory bricks and creation of a barbecue


The measurements of the refractory bricks are: width 11 cm. x length 22 cm. x thickness 6 cm. To build a barbecue, we choose a non-inclined plane. We make a draft of the project and calculate the quantities of material needed. We take as measures 125 x 85 cm and 90 cm in height. The side walls are made by placing two rows of bricks for each. To prepare the mortar, add 3 doses of sand and 1 small amount of cement, then add the water. The mixture must be thick. We check if the rows of bricks are straight, using a spirit level. At a height of 60 cm from the ground, we prepare the support base for the embers, with a special ash collector and fix it with the mortar. Let’s proceed and lay out the grid.

Refractory bricks measures: Refractory bricks and various qualities


Refractory bricks have different shapes and sizes. The measurements of the refractory bricks are always: width 11 cm. x length 22 cm. x thickness 6 cm. Refractory bricks have differences in both composition and firing. The two most commonly used types of refractory bricks are: red quality refractory bricks (due to the presence of iron oxides), used for the lining of fireplaces and barbecues. Or they are used for the windowsills and hobs of wood-fired ovens. Alternatively, also, for fireplace walls. The thermal resistance is equal to 1050 ° C, the opposition to the pressure is equal to 540 kg / cm2, the weight is about 2 kg / dm3, the thermal conductivity is around 11.63 W / (m • K) . The white quality refractory bricks, used for fireplaces, barbecues, walls of wood-fired ovens, walls and parapets of fireplaces, ovens. Their thermal resistance is 1300 ° C, that to compression is around 580 kg / cm2, their weight is about 2 kg / dm3, the thermal conductivity is equal to 11.70 W / (m • K).

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