Concrete with crushed, graded and washed recycled construction demolition waste as a coarse aggregate replacement

摘要: Purpose – A current trend is to use waste and by‐products in concrete replace binders aggregates. This reduces the impact on environment of finite natural resources. paper aims investigate whether which includes crushed, graded washed recycled construction demolition waste, used as a coarse aggregate, can be manufactured comparable strength from virgin aggregates.Design/methodology/approach Laboratory testing investigated development with varying degrees aggregate replacement. All samples were tested at five, seven, 14 21 days was compared plain control sample The mixes against were: 100 per cent gravel replacement same mix viscosity modifying agent. 50 partial use...