Mechanisms of thixotropy in cement suspensions considering influences from shear history and hydration

Research output: Contribution to journalConference articleResearchpeer review

Authors

  • Julian Link
  • Bastian Strybny
  • Thibaut Divoux
  • Thomas Sowoidnich
  • Max Coenen
  • Stefan Gstöhl
  • Christian M. Schlepütz
  • Marcus Zuber
  • Steffen Hellmann
  • Christiane Rößler
  • Johannes Lützenkirchen
  • Frank Heberling
  • Sébastien Manneville
  • Thorsten Schäfer
  • Horst-Michael Ludwig
  • Michael Haist

External Research Organisations

  • Centre national de la recherche scientifique (CNRS)
  • Bauhaus-Universität Weimar
  • Paul Scherrer Institut (PSI)
  • Karlsruhe Institute of Technology (KIT)
  • Friedrich Schiller University Jena
View graph of relations

Details

Original languageEnglish
Pages (from-to)698-704
Number of pages7
Journalce/papers
Volume6
Issue number6
Publication statusPublished - 6 Dec 2023

Abstract

Abstract The rheological properties of fresh concrete are a direct function of the interaction behaviour of the granular inventory of the concrete (i.e., gravel, sand and cement) and especially of the colloidal fractions of cement. Under low shear stresses, agglomeration of colloidal particles is observed, while at high shear stresses, dispersion of these agglomerates occurs. Besides the agglomeration state, the formation of shear banding, zones with concentrated shear flow, is another controlling mechanism of the flow behaviour of cement suspensions. Rheological creep tests in this study are focused on investigating the influence of shear history and hydration process on thixotropy of cement suspension. In this paper, the meaning of the word thixotropy is slightly extended to additionally encompass rheological aging and hydration effects. Selected samples were analyzed by coupling a rheometer to synchrotron X-ray tomography to gain insight into the shear-induced microstructural changes during shear start-up tests. The observations show heterogeneities in the velocity profile in the shear gap and the development of shear banding.

Keywords

    Rheology, Thixotropy, Cement suspension, Hydration, Rheo-Tomography, Shear banding

Cite this

Mechanisms of thixotropy in cement suspensions considering influences from shear history and hydration. / Link, Julian; Strybny, Bastian; Divoux, Thibaut et al.
In: ce/papers, Vol. 6, No. 6, 06.12.2023, p. 698-704.

Research output: Contribution to journalConference articleResearchpeer review

Link, J, Strybny, B, Divoux, T, Sowoidnich, T, Coenen, M, Gstöhl, S, Schlepütz, CM, Zuber, M, Hellmann, S, Rößler, C, Lützenkirchen, J, Heberling, F, Manneville, S, Schäfer, T, Ludwig, H-M & Haist, M 2023, 'Mechanisms of thixotropy in cement suspensions considering influences from shear history and hydration', ce/papers, vol. 6, no. 6, pp. 698-704. https://doi.org/10.1002/cepa.2810
Link, J., Strybny, B., Divoux, T., Sowoidnich, T., Coenen, M., Gstöhl, S., Schlepütz, C. M., Zuber, M., Hellmann, S., Rößler, C., Lützenkirchen, J., Heberling, F., Manneville, S., Schäfer, T., Ludwig, H.-M., & Haist, M. (2023). Mechanisms of thixotropy in cement suspensions considering influences from shear history and hydration. ce/papers, 6(6), 698-704. https://doi.org/10.1002/cepa.2810
Link J, Strybny B, Divoux T, Sowoidnich T, Coenen M, Gstöhl S et al. Mechanisms of thixotropy in cement suspensions considering influences from shear history and hydration. ce/papers. 2023 Dec 6;6(6):698-704. doi: 10.1002/cepa.2810
Link, Julian ; Strybny, Bastian ; Divoux, Thibaut et al. / Mechanisms of thixotropy in cement suspensions considering influences from shear history and hydration. In: ce/papers. 2023 ; Vol. 6, No. 6. pp. 698-704.
Download
@article{13a01d863b2c45f3bf32c8bccabca6f2,
title = "Mechanisms of thixotropy in cement suspensions considering influences from shear history and hydration",
abstract = "Abstract The rheological properties of fresh concrete are a direct function of the interaction behaviour of the granular inventory of the concrete (i.e., gravel, sand and cement) and especially of the colloidal fractions of cement. Under low shear stresses, agglomeration of colloidal particles is observed, while at high shear stresses, dispersion of these agglomerates occurs. Besides the agglomeration state, the formation of shear banding, zones with concentrated shear flow, is another controlling mechanism of the flow behaviour of cement suspensions. Rheological creep tests in this study are focused on investigating the influence of shear history and hydration process on thixotropy of cement suspension. In this paper, the meaning of the word thixotropy is slightly extended to additionally encompass rheological aging and hydration effects. Selected samples were analyzed by coupling a rheometer to synchrotron X-ray tomography to gain insight into the shear-induced microstructural changes during shear start-up tests. The observations show heterogeneities in the velocity profile in the shear gap and the development of shear banding.",
keywords = "Rheology, Thixotropy, Cement suspension, Hydration, Rheo-Tomography, Shear banding",
author = "Julian Link and Bastian Strybny and Thibaut Divoux and Thomas Sowoidnich and Max Coenen and Stefan Gst{\"o}hl and Schlep{\"u}tz, {Christian M.} and Marcus Zuber and Steffen Hellmann and Christiane R{\"o}{\ss}ler and Johannes L{\"u}tzenkirchen and Frank Heberling and S{\'e}bastien Manneville and Thorsten Sch{\"a}fer and Horst-Michael Ludwig and Michael Haist",
year = "2023",
month = dec,
day = "6",
doi = "10.1002/cepa.2810",
language = "English",
volume = "6",
pages = "698--704",
number = "6",

}

Download

TY - JOUR

T1 - Mechanisms of thixotropy in cement suspensions considering influences from shear history and hydration

AU - Link, Julian

AU - Strybny, Bastian

AU - Divoux, Thibaut

AU - Sowoidnich, Thomas

AU - Coenen, Max

AU - Gstöhl, Stefan

AU - Schlepütz, Christian M.

AU - Zuber, Marcus

AU - Hellmann, Steffen

AU - Rößler, Christiane

AU - Lützenkirchen, Johannes

AU - Heberling, Frank

AU - Manneville, Sébastien

AU - Schäfer, Thorsten

AU - Ludwig, Horst-Michael

AU - Haist, Michael

PY - 2023/12/6

Y1 - 2023/12/6

N2 - Abstract The rheological properties of fresh concrete are a direct function of the interaction behaviour of the granular inventory of the concrete (i.e., gravel, sand and cement) and especially of the colloidal fractions of cement. Under low shear stresses, agglomeration of colloidal particles is observed, while at high shear stresses, dispersion of these agglomerates occurs. Besides the agglomeration state, the formation of shear banding, zones with concentrated shear flow, is another controlling mechanism of the flow behaviour of cement suspensions. Rheological creep tests in this study are focused on investigating the influence of shear history and hydration process on thixotropy of cement suspension. In this paper, the meaning of the word thixotropy is slightly extended to additionally encompass rheological aging and hydration effects. Selected samples were analyzed by coupling a rheometer to synchrotron X-ray tomography to gain insight into the shear-induced microstructural changes during shear start-up tests. The observations show heterogeneities in the velocity profile in the shear gap and the development of shear banding.

AB - Abstract The rheological properties of fresh concrete are a direct function of the interaction behaviour of the granular inventory of the concrete (i.e., gravel, sand and cement) and especially of the colloidal fractions of cement. Under low shear stresses, agglomeration of colloidal particles is observed, while at high shear stresses, dispersion of these agglomerates occurs. Besides the agglomeration state, the formation of shear banding, zones with concentrated shear flow, is another controlling mechanism of the flow behaviour of cement suspensions. Rheological creep tests in this study are focused on investigating the influence of shear history and hydration process on thixotropy of cement suspension. In this paper, the meaning of the word thixotropy is slightly extended to additionally encompass rheological aging and hydration effects. Selected samples were analyzed by coupling a rheometer to synchrotron X-ray tomography to gain insight into the shear-induced microstructural changes during shear start-up tests. The observations show heterogeneities in the velocity profile in the shear gap and the development of shear banding.

KW - Rheology

KW - Thixotropy

KW - Cement suspension

KW - Hydration

KW - Rheo-Tomography

KW - Shear banding

U2 - 10.1002/cepa.2810

DO - 10.1002/cepa.2810

M3 - Conference article

VL - 6

SP - 698

EP - 704

JO - ce/papers

JF - ce/papers

SN - 2509-7075

IS - 6

ER -

By the same author(s)