Three-dimensional quantitative simulation of flowable concrete and its applications

摘要

Three-dimensional distinct element method (DEM) was used, as a new tool, to simulate behaviors of flowable concrete. Effort has been made to correlate and verify the DEM parameters of the simulation to the Bingham coefficients of high flow mortar and concrete. Finally, effort has also been made to propose generalized equation for mortar rheology from the mortar DEM parameters, for quantitative analysis. These equations were then verified by simulating the mortar. After mortar verification the mortar model was combined with aggregate model to simulate the flowable concrete. These simulations were then verified with the experimental results of flowable concrete. Here, some applications based on the developed model have also been simulated to show that this model can be applied all practical cases. It is found that, the DEM model proposed in this research can be used for simulation of flowable concrete.