Method and apparatus for depositing snow-ice treatment material on pavement

Apparatus and method for depositing salt granular materials upon a highway pavement at practical speeds. A highway truck is utilized which employs two spaced apart ejector mechanisms which function to deposit a continues narrow band of mixed salt and brine just forwardly of and in the path of travel of the two rearward truck wheel assemblies. This not only provides enhanced traction for these rear truck wheels, but also functions to utilize the rear wheels to compact the continuous narrow band pile of salt into pavement borne ice formations. Granular salt is delivered to the two ejector mechanisms utilized from a truck bed having a flat surface beneath which is a centrally disposed bed auger transport mechanism formed of two independently driven augers. These augers deliver salt to a cross auger mechanism mounted forwardly of the bed and which both supports and delivers salt to the two spaced apart ejectors. A brine formation assembly also is mounted upon the truck frame rearwardly of the truck cab and forwardly of the bed. By selectively actuating one or the other of the bed augers, granular salt and brine may be ejected from an elected one or both of the ejector mechanisms. This brine supply also is used for coating dry bridge decks prior to imminent icing weather.