Natural sand is a friable mix of the grains formed at natural destruction of massive rocks. The size of grains of natural sand usually is in range from 0,14 to 5 mm.
Natural sand is used practically at any construction works. Main scopes of natural sand:
- Use as bulk soil for alignment of a relief of the site of construction;
- Formation of a sandy pillow of the artificial basis under the bases at natural unstable soil;
- Adding the leveling layer under the bases;
- As small filler at preparation of tsementobeton, asphalt concrete and construction solutions.
Besides all-construction works, sand is used for landscape arrangement and in the decorative purposes.
Sand possesses high coefficient of a filtration and is successfully applied in engineering constructions as a drainage, a septic tank. Also material is used in systems of water purification, in particular in various types of filters.