Rheology of self-compacting concrete: A critical review and future perspective

Abstract

In this article, a critical review of the rheological properties of self-compacting concrete (SCC) has been presented. The rheological parameters such as shear yield stress, plastic viscosity, and thixotropic index have been shown to be quite effective in controlling the flowability and stability of SCC. The mixing, placing, pumping, finishing, pressure formwork, multi-layer casting, and segregation resistance of SCC can be controlled using these rheological parameters. Therefore, the rheological properties of SCC involving paste, aggregates, mineral admixtures, chemical admixtures, and fibers have been analyzed critically. Additionally, the applicability of different rheological models to the rheology of SCC is discussed. Moreover, this paper also provides directions for further research to the technical community on the rheological behavior of SCC.