Engineering Commons^™

Upgrading The Quality Of Recycled Aggregates From Construction And Demolitionwaste By Using A Novel Brick Separation And Surface Treatment Method, Kui Hu, Yujing Chen, Caihua Yu, Dong Xu, Shihao Cao, Rui Pang

Michigan Tech Publications

Mixed recycled aggregates (MRA) from construction and demolition waste (CDW) with high-purity and environmental performance are required for highway construction application in base layer and precast concrete curbs. The main problematic constituents that reduce the quality level of the recycled aggregates applications are brick components, flaky particles, and attached mortar, which make up a large proportion of CDW in some countries. This paper studies the potential of brick separation technology based on shape characteristics in order to increase the recycled concrete aggregates (RCA) purity for MRA quality improvement. MRA after purification was also processed with surface treatment experiment by rotating …