This paper deals with the effects of sorts and contents of impurities in recycled coarse aggregate on the properties of recycled concrete. Recycled aggregate which was assumed producing from reinforced concrete structure of wall, floor and roof slub with several sort of finishing materials. Sorts of finishing materials for original concrete were a multi-layer wall coating (ML), a synthetic resin emulsion paint (EP), a gypsum plaster (GP), a lime plaster (LP), a fibrous wall coating (FW), a ceramic tile (CT), a plastic tile (PT) and an asphalt membren water proofing (AM). The items of the investigations were the physical properties and amounts of impurities of recycled coarse aggregate, the mix proportion, setting time and bleeding of recycled coarse aggregate concrete.
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