Career sand is one of the cheapest building materials. Its low cost is due to the fact that during its extraction, sand is not subjected to additional processing, and therefore in its composition there are various kinds of impurities. Of course, quarry sand is inferior in terms of quality to the pre-wash, but it can still be used for plastering, for the erection of foundations and brick walls, and for the arrangement of the territory.
It is interesting that quarry sand can be subjected to additional treatment, as a result of which excess impurities are removed from its original composition. Thanks to processing, the following types of sand can be obtained: washed, dry, sown. All of them differ from each other in the size of the fraction and strength.