Viscoplastic Particle Method for Flow Simulation of Highly Flowable Mortar and Concrete
The objective of this study is to simulate the flow behavior of mortar or flowable concrete using the particle method known as the moving particle semi-implicit (MPS) method. The model accounts for flowable mortar or concrete particle dynamics that are based on the Navier-Stokes' equation in Lagrangian form and the conservation of mass. It is validated through a comparison with experimental flow tests. In order to formulate the material constitutive law, mortar or flowable concrete is treated as a highly viscous material in the non-flow state or as a viscoplastic material in the flow state. Yield stress and viscosity are used as the basic rheological properties of the mortar and flowable concrete. Two series of L-box flow tests on mortar and highly flowable concrete are simulated and a good correlation is shown between the simulated and experimental result.
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Document Type: Research Article
Publication date: 2012-07-01
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