Investigation of the interphase between recycled aggregates and cementitious binding materials using integrated microstructural-nanomechanical-chemical characterization

The mixtures including crushed recycled aggregates have multiple complex aggregate/paste interphase regions compared to conventional concrete mixtures, which brings significant technical challenges in understanding and characterization of their properties. To gain a better understanding of such complex material organization, this study adopted multiscale experimental methods by using nanoindentation test-analysis, laser scanning microscopy, and...