Study on influence of aggregate particle on rheological property of fresh concrete

摘要

In this study, two-dimensional shear deformational behavior of solid4iquid two-phase model material was grasped experimentally and analytically, and the influence of aggregate particle was discussed rheologically. As the results, the behavior ofmatrix around aggregate particles under shear deformation was observed, and this behavior can be simulated by two-dimensional viscoplastic finite element method (VFEM). According to the result of numerical analysis, the viscosity of suspension increaseswith increasing of dispersing degree of aggregate particle. Furthermore, in the experiment used the materials with many aggregate particles, the mechanism of increasing of rheological constants with the touch of aggregate particles was examined.