Abstract
This paper is to propose the liquid-solid two phase modeling for simulating the flow and segregation of fresh concrete with the authors' intention of getting the mathematical background for mixture design concept serving super fluidized fresh concrete. The multi-component structure of solid phase was newly introduced into the frame of conventional liquid-solid two phase model in fluid dynamics. The partial stresses carried by gravel, sand and cement powder were implemented and the compatibility equations derived from experimental works were incorporated in the scheme of formulation for multi-component solid suspended by liquid. For verifying the capability of the physical model concerned, the trial model for particle-to-particle interaction was combined with the entire frame of formulation. It was examined that the model can follow the behaviors qualitatively in terms of the fluidity and segregation of particulate flow.
