Ceramzite gravel. Description and technological characteristics Building materials


Ceramzit is a porous lightweight building material. It is obtained by firing a special slightweight clay, which, with an increase in temperature, up to 1300 ° C is quite quickly swept. Together with this, the surface of the granules is melted, thereby creating a hermetic shell.

Ceramzite gravel: Characteristics

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Externally gravel clay, the price of which is available, resembles cellular vitreous granules of oval (round) shapes covered with a shell. Accordingly, its characteristics depend on the following factors:

  • strength;
  • bulk density;
  • thermal conductivity;
  • water absorption;
  • clay class, which is used as an initial product.

The production of gravel of the ceramzite suggests the following operations:

  • preparation and selection of raw materials;
  • the process of creating granules;
  • firing (swelling) granules:
  • cooling process;
  • selection of granules on fractions.

At the same time, depending on the characteristics of the raw material there are several methods for its preparation for the burning.

1. Gravel Ceramzite: fraction.

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Depending on the parameters of grains, claymzite gravel is divided into several fractions:

  • 5-10 mm;
  • 10-20 mm;
  • 20-40 mm.

Grains having a size less than 5 mm are believed to clay sand.

2. Water absorption of clay.

The water absorption of gravel of the ceramzite is from 8-20%, frost resistance - not less than 25 cycles.

3. Gravel Ceramzite: brand.

Ceramzite gravel is manufactured 10 grades (from 150 to 800), each of which depends on the bulk bulk mass (kg / m³).

4. Ceramzite gravel: density.

The bulk density of this building material is determined by fractions in special vessels. The size of the clamzite is greater, the less its density.

5. Thermal conductivity of the clay.

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The amount of heat that passes through the wall depends on the thermal conductivity of the building material. To date, this area does not specify certain requirements for the cerazy. Accordingly, the product is followed by the product, the thermal conductivity of which is lower.

6. The strength of the ceramisit.

High-quality ceramzite, which has optimal strength, is characterized by closed, relatively small and evenly arranged pores. It contains enough glass for normal binding of particles to a dense building material. If they cut the granules, then the edges are saved and the crust is well visible.

Operating properties of clay gravel

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  • ease;
  • fire safety;
  • environmental friendliness;
  • waterproof;
  • strength;
  • it does not have toxic impurities;
  • increased sound and moisture insulation;
  • frost resistance;
  • chemical inertness;
  • long service life;
  • vapor permeability;
  • resistance to temperature differences;
  • does not rot;
  • keeps its properties with multiple freezing and defrosting.

Ceramzite gravel: Application

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Used with:

  • making building blocks;
  • landscaping tracks in the garden plot;
  • heat insulation bath;
  • due to the low weight of clay gravel, it is used when creating a concrete screed, drainage system;

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  • insulation of engineering thermal and plumbing systems;
  • making light concrete;
  • sinking the foundation;
  • thermal insulation attic, roofs, basements, overlaps, walls, floors, etc.
Ceramzite gravel. Description and technological characteristics
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