Sand particles range in diameter from 0.0625 mm to 2 mm. An individual particle in this range size is termed a sand grain. Sand grains are between gravel (with particles ranging from 2 mm up to 64 mm) and silt (particles smaller than 0.0625 mm down to 0.004 mm). we can reach up to 45 micron milled sand with magnetic separation uses • Beach nourishment: Governments move sand to beaches where tides, storms or deliberate changes to the shoreline erode the original sand. • Brick: Manufacturing plants add sand to a mixture of clay and other materials for manufacturing bricks. • Cob: Coarse sand makes up as much as 75% of cob. • Mortar: Sand is mixed with cement and sometimes lime to be used in masonry construction. • Concrete: Sand is often a principal component of this critical construction material. • Glass: Sand is the principal component in common glass. • Landscaping: Sand makes small hills and slopes (for example, in golf courses). • Glaze, frit, ceramic, instead of quartz • Paint: Mixing sand with paint produces a textured finish for walls and ceilings or non-slip floor surfaces. • Railroads: Train operators use sand to improve the traction of wheels on the rails. • Roads: Sand improves traction (and thus traffic safety) in icy or snowy conditions. • Sand animation: Performance artists draw images in sand. Makers of animated films use the same term to describe their use of sand on frontlit or backlit glass. • Sand casting: Casters moisten or oil molding sand, also known as foundry sand and then shape it into molds into which they pour molten material. Oxides % SiO2 99.6 Al2O3 0.2 Fe2O3 TiO2 CaO MgO K2O Na2O L.o.I (1100 C) .020 0.01 0.02 0.01 0.01 0.01 0.10
