How and why builders use sand in their work

Any construction work is not without sand. It is successfully used as a septic tank, drainage. Construction sand can be used for water purification. Sand is river and career. Therefore, the price of the construction sand can fluctuate, depending on its type. At the bottom of the rivers there are certain reserves of this bulk material. There are no impurities in river sand. Buying a large expensive sand will be the most expensive. It is used when housing is built, concrete, dry building mixtures are produced. Destroying solid rocks, they mines career sand. Careers are natural or artificial. But for sand mining, an open method is used. This sand may contain particles of clay, dust, quartz, organic inclusions. They affect the quality of this material. The smaller any impurities, the more expensive and better. Stones, clay and other impurities can wash out of sand.