Use of waste rocks crushing as the artificial subfoundations in Karelia

The basic questions connected with use of production wastes of rubble - sand-eliminations of crushing as the bottom layers of subfoundations, bases and road coverings are considered. It is shown, that sand-eliminations of crushing are characterized by the high maintenance of pulverous and clay particles and water absorption. These factors lead to occurrence of rock heaving and cold danger, that reduces reliability of building constructions.