Process for the utilization of demolition material of buildings

摘要

Evaluation of damaged material from building structures by treatment of the masonry material in rotating drums with lifting (sic) and selective comminution, resulting in rounding off of the granules with simultaneous removal of adhering mortar and plaster residues. The fine particles obtained are then screened off giving an pleasing and decorative appearance to the bricks (sic) with rounded off granules.