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In this study, two rheology tests were conducted to obtain the rheological constants of mortar. The first was sphere pull-up test, the second was the measurement by using rotational vane viscometer. The rheological constants were obtained by approximating flow curve of each test by Bingham model. Using them, the mini slump test was analytically reproduced by Moving Particle Semi-implicit (MPS) method.The analysis results using the rheological constants of sphere pull-up test agreed with the flow spread and slump shape. Therefore, the rheological constants obtained by the experiment are effective for the MPS analysis.

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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.

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