Study on the rheological constants estimation method of cement paste by flow test

Abstract

In this study, we performed various patterns paste flow analysis using FEM. After that, we performed correlation analysis on a relationship between flow characteristics and rheological constants obtained from FEM analysis. Correlation analysis revealed that there is a strong relationship between yield stress and flow value, and between plastic viscosity and paste density and flow arrival time. we investigated these relationships by actual test results (flow test and rheological test) using cement paste, and we proposed a rheological constants estimation equations. In addition, the effectiveness of estimation equations were confirmed by reproducing the actual flow test results using MPS.