"Transit-mix plant" means a use of land and equipment incidental to the erection,
maintenance, and use of plants, including fixtures and machinery, for the handling,
sorting, shipment, transshipment, storage, mixing, and grading of building materials,
including sand, gravel, and cement but not including hot tar, asphalt, or other similar
bitumens. A "transit-mix plant" includes buildings, structures, bins, chutes, bunkers,
silos, hoists, elevators, hoppers or conveyors designed, intended for and used in
the preparation of concrete ready-mix for shipment in trucks and transit-mixers from
the premises.
