Abstract
Herschel-Bulkley model is one of the most commonly used rheological models for Non-Newtonian Fluid, and it has been used to characterize the fresh concrete in a wide gap rheometer. In the rheological test, the measured data of rotating speed and torque need to be transformed to fundamental rheological parameters. However, the equation and the approximate solution suggested in the literature are questionable. In this paper, a new integral equation is theoretically derived. Nine sets of experimental data are fitted, and parameters of the model are obtained. This analytical solution is compared with the approximate solution proposed in the literature. The result indicates that the approximate solution overestimates the shear stress at both low and high shear rate zones, and the new transformation equation for Herschel-Bulkley model in this study is validated to describe the rheological behavior of fresh concrete.
| Original language | English |
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| Title of host publication | 4th International Symposium on Design, Performance and Use of Self-Consolidating Concrete |
| Editors | Caijun Shi, Zuhua Zhang, Kamal Henri Khayat |
| Publisher | RILEM Publications S.A.R.L. |
| Pages | 237-251 |
| Number of pages | 15 |
| ISBN (Electronic) | 978-2-35158-205-3 |
| ISBN (Print) | 978-2-35158-204-6 |
| Publication status | Published - May 2018 |
| Externally published | Yes |
| Event | 4th International Symposium on Design, Performance and Use of Self-Consolidating Concrete (SCC’2018) - Changsha, China Duration: 10 May 2018 → 13 May 2018 |
Conference
| Conference | 4th International Symposium on Design, Performance and Use of Self-Consolidating Concrete (SCC’2018) |
|---|---|
| Place | China |
| City | Changsha |
| Period | 10/05/18 → 13/05/18 |
Bibliographical note
Research Unit(s) information for this publication is provided by the author(s) concerned.Research Keywords
- Rheological properties
- fresh concrete
- Herschel-Bulkley model
- coaxial cylinders rheometer