Filter sand definition
Filter sand means a specially graded type of permanent filter media.
Filter sand means a type of filter media.
Filter sand means clean, washed, screened or natural sand having less than 10% by weight retained on a 10 mm (3/8 in) sieve and less than 2% by weight passing a 0.075 mm (#200 US std.) sieve and the permeability of the sand must be not less than 0.0004 m/s (0.0013 ft/s);
More Definitions of Filter sand
Filter sand means the fine fraction of plant aggregate. It is a ground and washed sand (typical size minus-10 mesh) that has been cycloned, hydroseparated and then filtered at the extractor belt filters. It is transported by conveyor belt, rail or other wheeled conveyance. It is generally mixed with dry cobb aggregate but may be transported and used separately depending on construction needs. This term replaces the former terms 'coarse tailings', 'filter tailings', or 'belt filter tailings' in order to clarify the purpose and origin of the construction material to which it refers.