The types of sand and their characteristics, production and application

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2020-04-15 02:00:12

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Sand is a sedimentary rock and artificial material which has in the fraction of rocks. Quite often it is composed of mineral quartz, which is a substance called silicon dioxide. If we are talking about natural sand, it is a crumbly mixture, the fraction of grains which reaches 5 mm.

Classification by destruction of the rocks

types of sand

This material is formed when the destruction of the mountain of solid rock. Depending on what the conditions of accumulation, sand can bit:

  • Alluviale;
  • Morskimi;
  • Diluvialism;
  • Golovami;
  • Username.

When the material occurs in the course of activity of bodies of water and watercourses, its elements will have a rounded circular form.

Main types of sand and their extraction

sea sand

Today, almost all types of sand are used in all areas of activity and industry. River sand – building mixture, which is extracted from riverbeds. In this material relatively high degree of purification, that is why the structure of missing small stones, clay impurity content and foreign matter.

Quarry sand is produced by washing with water in a huge amount, it helps get rid of dust particles of clay. Considering the types of sand, can meet the career of sand, which is cleaned in the mining process, from large fractions of stones. This material is quite widespread in the manufacture of solutions, which are laying the foundations and implementation of plastering work. You can meet the career of seeded sand in asphalt concrete mixtures.

Building sand meet the requirements of GOST 8736-2014, according to which the material is a granular inorganic compound from the large particle grains, the amount of which reaches 5 mm. the density of the material equal to 1300 kg/m3. Building sand is formed under natural destruction of the rock, it is mined methods of development of sand-gravel and sandy deposits without and with the use of processing equipment.

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The Main types of sand include more and artificial heavy sand that has the appearance of a loose mixture obtained from the mechanical crushing of rocks, among the latter should videliti:

  • Slake;
  • Granite;
  • Izvestnyak;
  • Mramor;
  • Peso;
  • Top.

Features of artificial sand

sand quarry price

They may have different origin and density. If to compare this grain of sand with grains of natural origin, demonstrate an angular shape and rough surface. Artificial Sands are made use of as fillers in the preparation of plasters and decorative solutions. As a result, possible to achieve tangible texture of the upper layer on the outer surfaces.

This material may be used in any layer of plaster, because the factionalism of the grains may be different, depending on the kind of solution. Usually grain size shall be equal size of natural sand. In the manufacture of artificial sand processing is taken otheriwse coal, stone, and unburned particles, in which low sulfur content.

The characteristics of the material will depend on the quality nakryvochnogo a layer. In the manufacture of plaster from the sand to save can be completed with crushed stone, powder of this breed or crumb, from this quality textures even wins.

Application and features of sea sand

river sand alluvial

Sea sand can be used in the production of mortars, the manufacture of aggregates, the implementation of plaster works, laying pavements, construction of fences and barriers, as filler for structural grout and dyes. The production of such sand is regulated by GOST 8736-93.

Fractions can vary from 2.5 to 3.5 MK that defines the module size. Grain density equal to the limit from 2 to 2.8 g/cm3. The sand to the sea fully there should be no impurities, but in some fractions it is possible to meet low content of clay and dust particles. Sea sand is characterized by labor-intensive industries, making it a great value for the career alluvial sand.

Features and price of pit sand

sand extraction

The Main feature of the pit sand is the absence of impurities the frequency. Alluvial quarry material has the following characteristics: fraction ranging from 1.5 to 5 mm, a density equal to 1.60 g/cm3 and low content of clay, dust and other impurities. Last in the convoy shall not be more than 0,03%.

Sand pit, whose price per cubic meter will be 2200 RUB, is used not only in construction but also in the decoration, as well as the national economy. Particularly cost-effective use of such sand in manufacture of concrete and bricks, as well as in road and housing construction.

The Sand mining, the price of which will amount of 2,300 rubles., can be represented in the form of a material with a fraction in the range of 2.5 to 2.7 mm. in the production of high-strength concrete andreinforced concrete structures typically used alluvial sand quarry coarse fraction. Career the material is masonry and the manufacture of paving slabs.

Specifications river alluvial sand and peculiarities of its production

use sand

Alluvial river Sand has a density of 1.5 kg/m3. If we are talking about density in the condition of natural humidity, the figure will be reduced to 1.45. The composition may contain dust particles, silt and clay elements, but no more than in the amount of 0.7% by weight. Material moisture is 4%, whereas specific weight is 2.6 g/cm3. These types of sand are extracted using a dredge, which is fixed on the barge. This equipment is supplemented by hydro-mechanical systems, powerful pumps, and tanks for the division of the material composition. Sand extraction from river beds dried up rivers like the extraction of pit sand.

Conclusion

Almost all kinds of sand can be attributed to the first class of radioactivity. As exceptions serve only crushed sand. If you talk about other species, they are radiation safe and can be used in all construction works without restrictions.

The Application of sand is quite common today. For example, a quartz variety used for the manufacture of welding materials for General and special purposes. As for building variety, used to produce structural coatings, mixing with the dyes. Used sand and even during the finishing works, and also at repair of premises. Is the material component of asphalt mixtures, which are used in laying roads and construction.


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Alin Trodden - author of the article, editor
"Hi, I'm Alin Trodden. I write texts, read books, and look for impressions. And I'm not bad at telling you about it. I am always happy to participate in interesting projects."

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