Transparent model concrete with tunable rheology for investigating flow and particle-migration during transport in pipes
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Date
2020
Volume
193
Issue
Journal
Series Titel
Book Title
Publisher
Amsterdam [u.a.] : Elsevier Science
Link to publishers version
Abstract
The article describes the adaption and properties of a model concrete for detailed flow studies. To adapt the yield stress and plastic viscosity of the model concrete to the corresponding rheological properties of real concrete, the model concrete is made of a mixture of glass beads and a non-Newtonian fluid. The refractive index of the non-Newtonian fluid is adjusted to the refractive index of the glass beads by the addition of a further constituent. The rheological properties of the model concrete are characterised by measurements in concrete rheometers. Finally, the first exemplary results from experiments with the model concrete are presented, which give incipient impressions of the complex internal dynamics in flowing concrete.
Description
Keywords
Construction materials, Fresh concrete, Granular suspensions, Particle migration, Refractive index, Rheometry
Citation
Auernhammer, G. K., Fataei, S., Haustein, M. A., Patel, H. P., Schwarze, R., Secrieru, E., & Mechtcherine, V. (2020). Transparent model concrete with tunable rheology for investigating flow and particle-migration during transport in pipes. 193. https://doi.org//10.1016/j.matdes.2020.108673
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License
CC BY-NC-ND 4.0 Unported