Coarse sand. Application

Sand is one of the main components,used not only in construction, but also in landscape design. There are many varieties of this material, and each of them is suitable for a certain type of work. In construction, large sand is most often used.

Extraction of sand

Sand - a mixture of minerals and rocks that do not connect with each other. Get it from the bottom of the river or quarry. These two species differ considerably in composition and size.

The quarry sand contains various impurities, therefore it requires more additional processing:

• Washing is done to purify unnecessary components.
• Screening - is performed in the event that unnecessary large elements, for example, stones, get into the rock.

River sand does not contain foreign impurities and is distinguished by the same size of each individual particle. Proceeding from this, it is much more expensive.

Characteristics

Large river sand can be met very rarely,its dimensions range from 1.5 to 2.4 mm. But the material extracted from the quarry, although it has more fine impurities, most often refers to the fraction with the highest index (2.5-3 mm).

Ready for sale, it has the following features:

• Absence of foreign impurities in the form of clay and other elements.
• With an excess of moisture, the volume of sand increases by 14% of the original state.
• 1 class of radioactivity.
• High frost resistance allows not to lose its basic qualities even at low temperatures.

Application

• Coarse sand is most often used in construction, for the construction of the foundation of other supporting structures.
• Part of the concrete and cinder block.
• It is also widely used in road works, it is used to make asphalt.
• Strengthens reinforced concrete structures.
• It is used when laying paving slabs. Coarse sand prevents the formation of puddles.
• Used for the manufacture of plaster orscreed for cement. In this case, the most suitable would be building material mined by the river method. Because the absence of various impurities helps to improve the quality of the solutions.
• It is widely used in brick and block production. It makes such products more durable, while at the same time protecting them from mechanical damage and the adverse effects of temperature and moisture.

Secondary functions

1. Coarse sand is distinguished by its protectivequalities, it does not bind with water and does not change its properties under the influence of chemical elements. That is why it is an ideal addition to various building mixtures and mortars. Thanks to it, the least shrinkage and strengthening of the material is ensured without losing the original useful properties.
2. Due to its neutral color and light texture,sand of a large fraction is often used in decorating courtyards and other personal plots; with its help alpine slides and walking paths are built.
3. It is an indispensable material when building walls of brick.
4. Also, special drainage is made from coarse sand under the building foundation, which will be the best protection against excess moisture.
5. Used in the manufacture of septic tanks.

Due to its properties, coarse sand isuniversal remedy for strengthening various structures and materials. It is used in various areas of construction, at the same time getting into the composition of both basic and auxiliary elements. The sand is different in that it cannot rot, there is no fungus and other manifestations of excessive moisture on it. It is perfectly breathable and does not trap the liquid inside. In addition, this material is environmentally friendly and safe for human health.