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- W4385460598 abstract "Concrete remains a widely used material in construction. As structures become more optimised, a deeper understanding of the rheology of the concrete mixture is necessary. This paper aims to numerically simulate the flow of fresh concrete in the L-box apparatus, with the objective of gaining insights into its rheological behaviour and predicting its properties. The fresh concrete flowing through the L-box test is simulated from the moment that the gate is lifted until the stoppage and the material takes its final shape. The flow in this tool occurs on a free surface. In this work, a three-dimensional model has been developed using the computational fluid dynamics technique for simulation. The flow behaviour of fresh concrete was assumed to be non-Newtonian following the Bingham law, characterised by a non-linear shear stress–shear rate ratio, yield stress and plastic viscosity. A set of numerical simulations by varying workability were conducted. Furthermore, a parametric study was conducted to examine the impact of introduced parameters in the concrete flow, including the effect of yield stress, viscosity and density." @default.
- W4385460598 created "2023-08-02" @default.
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- W4385460598 date "2023-09-14" @default.
- W4385460598 modified "2023-09-27" @default.
- W4385460598 title "Numerical simulation of fresh concrete flow in the L-box test using computational fluid dynamics" @default.
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- W4385460598 doi "https://doi.org/10.1680/jmacr.23.00032" @default.
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