Recently, there has been growing research interest in simulation on the flow behaviors of fresh concrete, because these properties have significant effects on construction quality of casting and forming process, and also the properties of hardened concrete. The behaviors of fresh concrete are usually described by workability, consistency, flowability, mobility, pumpability, shootability, compactibility, and finishability. While various numerical simulations for concrete flow are available, District Element Method (DEM) has been applied widely due to its unique advantages of both macro and micro analysis i.e. the flow of the concrete mixture as a whole and particulate behavior of individual constituents in a mixture. This paper first presents a brief overview on the rheological models of fresh concrete, followed by a detailed review on simulating the fresh concrete flow using the DEM method. Moreover, recommendations for future work and directions will be provided.
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