Main tasks of ore raw material study, requiring special laboratory equipment, are considered Conditions are described, that are required for determination of sample mass and material size, as well as the operations, that include sample preparation, determination of grindability, crushing and grinding products concentration, through implementation of which, raw material characteristics study and processing technology development are accomplished Sample preparation procedures (for mineralogical, phase and substantial analyses), laboratory ore-dressing flow sheets, as well as the recommended optimal set of laboratory equipment for their implementation, are described.
The paper deals with the problems of crushed stone screening wastes recycling and commercial utilization of the products obtained. Application of pulsed vibration technique made it possible to minimize generation of screening wastes in crushed stone production and provided means for obtaining high-quality fillers for production of compact fine-grained concretes and cell concrete.
