Rheological behavior of cement paste with nano-Fe3O4 under magnetic field: Magneto-rheological responses and conceptual calculations

Dengwu Jiao; Karel Lesage; Mert Yucel Yardimci; Khadija El Cheikh; Caijun Shi; Geert De Schutter

doi:10.1016/j.cemconcomp.2021.104035

Rheological behavior of cement paste with nano-Fe₃O₄ under magnetic field: Magneto-rheological responses and conceptual calculations

Dengwu Jiao, Karel Lesage, Mert Yucel Yardimci, Khadija El Cheikh, Caijun Shi, Geert De Schutter^*

^*Corresponding author for this work

Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review

60 Citations (Scopus)

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Abstract

The magneto-rheological responses of cement paste with nano-Fe₃O₄ particles are experimentally investigated. The estimated magneto-dynamic force between two neighboring nanoparticles and equilibrium movement velocity of the nanoparticles in cement-based suspensions are calculated. Results show that the nanoparticles have a potential to move to form magnetic clusters when a magnetic field is applied, which creates a sort of agitation effect breaking down the early C-S-H links between cement particles, and thus the corresponding suspensions exhibit liquid-like behavior immediately after applying the magnetic field. The solid-like property of the studied suspensions becomes more dominant with magnetizing time due to the formation of magnetic clusters and the reconstruction of C-S-H bridges. The rheological properties of paste medium exert significant influences on the magneto-rheological responses of cement paste containing nano-Fe₃O₄ particles. It is revealed that the calculated magnetic yield parameter and nanoparticle movement velocity are useful relevant indicators to evaluate the magneto-rheological effect of cementitious paste. © 2021 The Authors.

Original language	English
Article number	104035
Journal	Cement and Concrete Composites
Volume	120
Online published	31 Mar 2021
DOIs	https://doi.org/10.1016/j.cemconcomp.2021.104035
Publication status	Published - Jul 2021
Externally published	Yes

Funding

This paper is a deliverable of the ERC Advanced Grant project ‘SmartCast’. This project has received funding from the European Research Council (ERC) under the European Union's Horizon 2020 research and innovation program (grant agreement No. 693755 ). The authors gratefully acknowledge the financial support received from ERC.

Research Keywords

Active rheology control (ARC)
Active stiffening control (ASC)
Magnetic field
Nano-Fe3O4
Structural build-up

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This full text is made available under CC-BY 4.0. https://creativecommons.org/licenses/by/4.0/

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title = "Rheological behavior of cement paste with nano-Fe3O4 under magnetic field: Magneto-rheological responses and conceptual calculations",

abstract = "The magneto-rheological responses of cement paste with nano-Fe3O4 particles are experimentally investigated. The estimated magneto-dynamic force between two neighboring nanoparticles and equilibrium movement velocity of the nanoparticles in cement-based suspensions are calculated. Results show that the nanoparticles have a potential to move to form magnetic clusters when a magnetic field is applied, which creates a sort of agitation effect breaking down the early C-S-H links between cement particles, and thus the corresponding suspensions exhibit liquid-like behavior immediately after applying the magnetic field. The solid-like property of the studied suspensions becomes more dominant with magnetizing time due to the formation of magnetic clusters and the reconstruction of C-S-H bridges. The rheological properties of paste medium exert significant influences on the magneto-rheological responses of cement paste containing nano-Fe3O4 particles. It is revealed that the calculated magnetic yield parameter and nanoparticle movement velocity are useful relevant indicators to evaluate the magneto-rheological effect of cementitious paste. {\textcopyright} 2021 The Authors.",

keywords = "Active rheology control (ARC), Active stiffening control (ASC), Magnetic field, Nano-Fe3O4, Structural build-up",

author = "Dengwu Jiao and Karel Lesage and Yardimci, {Mert Yucel} and {El Cheikh}, Khadija and Caijun Shi and {De Schutter}, Geert",

year = "2021",

month = jul,

doi = "10.1016/j.cemconcomp.2021.104035",

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T1 - Rheological behavior of cement paste with nano-Fe3O4 under magnetic field

T2 - Magneto-rheological responses and conceptual calculations

AU - Jiao, Dengwu

AU - Lesage, Karel

AU - Yardimci, Mert Yucel

AU - El Cheikh, Khadija

AU - Shi, Caijun

AU - De Schutter, Geert

PY - 2021/7

Y1 - 2021/7

N2 - The magneto-rheological responses of cement paste with nano-Fe3O4 particles are experimentally investigated. The estimated magneto-dynamic force between two neighboring nanoparticles and equilibrium movement velocity of the nanoparticles in cement-based suspensions are calculated. Results show that the nanoparticles have a potential to move to form magnetic clusters when a magnetic field is applied, which creates a sort of agitation effect breaking down the early C-S-H links between cement particles, and thus the corresponding suspensions exhibit liquid-like behavior immediately after applying the magnetic field. The solid-like property of the studied suspensions becomes more dominant with magnetizing time due to the formation of magnetic clusters and the reconstruction of C-S-H bridges. The rheological properties of paste medium exert significant influences on the magneto-rheological responses of cement paste containing nano-Fe3O4 particles. It is revealed that the calculated magnetic yield parameter and nanoparticle movement velocity are useful relevant indicators to evaluate the magneto-rheological effect of cementitious paste. © 2021 The Authors.

AB - The magneto-rheological responses of cement paste with nano-Fe3O4 particles are experimentally investigated. The estimated magneto-dynamic force between two neighboring nanoparticles and equilibrium movement velocity of the nanoparticles in cement-based suspensions are calculated. Results show that the nanoparticles have a potential to move to form magnetic clusters when a magnetic field is applied, which creates a sort of agitation effect breaking down the early C-S-H links between cement particles, and thus the corresponding suspensions exhibit liquid-like behavior immediately after applying the magnetic field. The solid-like property of the studied suspensions becomes more dominant with magnetizing time due to the formation of magnetic clusters and the reconstruction of C-S-H bridges. The rheological properties of paste medium exert significant influences on the magneto-rheological responses of cement paste containing nano-Fe3O4 particles. It is revealed that the calculated magnetic yield parameter and nanoparticle movement velocity are useful relevant indicators to evaluate the magneto-rheological effect of cementitious paste. © 2021 The Authors.

KW - Active rheology control (ARC)

KW - Active stiffening control (ASC)

KW - Magnetic field

KW - Nano-Fe3O4

KW - Structural build-up

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