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Structural evolution of cement paste with nano-Fe3O4 under magnetic field : effect of concentration and particle size of nano-Fe3O4

Dengwu Jiao (UGent) , Karel Lesage (UGent) , Mert Yücel Yardimci (UGent) , Khadija El Cheikh (UGent) , Caijun Shi and Geert De Schutter (UGent)
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Abstract
The effects of concentration and particle size of nano-Fe3O4 particles on the evolution of structural build-up of cementitious paste under magnetic field are experimentally investigated and then verified by theoretical calculations. Three types of nano-Fe3O4 particles with various particle sizes are exploited. The results show that the liquid-like properties of the nano-Fe3O4 incorporated cementitious pastes increase immediately after initiation of an external magnetic field and the extent of this increment increases with the nano-Fe3O4 content. The magneto-rheological effect, quantified by the difference of the storage modulus at 300 s between 0 T and 0.5 T, increases with increasing concentration of the nanoparticles. The particle size of nano-Fe3O4 particles plays a dominant role in the viscoelastic properties without magnetic field, whereas the rheological response of the cementitious paste to an external magnetic field is mainly determined by the crystalline structures and magnetic properties of the nano-Fe3O4 particles. The magnetic yield parameter is a useful indicator to describe the intensity of the magneto-rheological response, and the increase rate of the loss modulus at early age is proportional to the movement velocity of the nano-Fe3O4 particles.
Keywords
Cement paste, Structural build-up, Particle size, Magnetic field, Nano-Fe3O4, RHEOLOGY CONTROL, CONCRETE, MICROSTRUCTURE, NANOPARTICLES, THIXOTROPY, MODEL

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MLA
Jiao, Dengwu, et al. “Structural Evolution of Cement Paste with Nano-Fe3O4 under Magnetic Field : Effect of Concentration and Particle Size of Nano-Fe3O4.” CEMENT & CONCRETE COMPOSITES, vol. 120, 2021, doi:10.1016/j.cemconcomp.2021.104036.
APA
Jiao, D., Lesage, K., Yardimci, M. Y., El Cheikh, K., Shi, C., & De Schutter, G. (2021). Structural evolution of cement paste with nano-Fe3O4 under magnetic field : effect of concentration and particle size of nano-Fe3O4. CEMENT & CONCRETE COMPOSITES, 120. https://doi.org/10.1016/j.cemconcomp.2021.104036
Chicago author-date
Jiao, Dengwu, Karel Lesage, Mert Yücel Yardimci, Khadija El Cheikh, Caijun Shi, and Geert De Schutter. 2021. “Structural Evolution of Cement Paste with Nano-Fe3O4 under Magnetic Field : Effect of Concentration and Particle Size of Nano-Fe3O4.” CEMENT & CONCRETE COMPOSITES 120. https://doi.org/10.1016/j.cemconcomp.2021.104036.
Chicago author-date (all authors)
Jiao, Dengwu, Karel Lesage, Mert Yücel Yardimci, Khadija El Cheikh, Caijun Shi, and Geert De Schutter. 2021. “Structural Evolution of Cement Paste with Nano-Fe3O4 under Magnetic Field : Effect of Concentration and Particle Size of Nano-Fe3O4.” CEMENT & CONCRETE COMPOSITES 120. doi:10.1016/j.cemconcomp.2021.104036.
Vancouver
1.
Jiao D, Lesage K, Yardimci MY, El Cheikh K, Shi C, De Schutter G. Structural evolution of cement paste with nano-Fe3O4 under magnetic field : effect of concentration and particle size of nano-Fe3O4. CEMENT & CONCRETE COMPOSITES. 2021;120.
IEEE
[1]
D. Jiao, K. Lesage, M. Y. Yardimci, K. El Cheikh, C. Shi, and G. De Schutter, “Structural evolution of cement paste with nano-Fe3O4 under magnetic field : effect of concentration and particle size of nano-Fe3O4,” CEMENT & CONCRETE COMPOSITES, vol. 120, 2021.
@article{8704424,
  abstract     = {{The effects of concentration and particle size of nano-Fe3O4 particles on the evolution of structural build-up of cementitious paste under magnetic field are experimentally investigated and then verified by theoretical calculations. Three types of nano-Fe3O4 particles with various particle sizes are exploited. The results show that the liquid-like properties of the nano-Fe3O4 incorporated cementitious pastes increase immediately after initiation of an external magnetic field and the extent of this increment increases with the nano-Fe3O4 content. The magneto-rheological effect, quantified by the difference of the storage modulus at 300 s between 0 T and 0.5 T, increases with increasing concentration of the nanoparticles. The particle size of nano-Fe3O4 particles plays a dominant role in the viscoelastic properties without magnetic field, whereas the rheological response of the cementitious paste to an external magnetic field is mainly determined by the crystalline structures and magnetic properties of the nano-Fe3O4 particles. The magnetic yield parameter is a useful indicator to describe the intensity of the magneto-rheological response, and the increase rate of the loss modulus at early age is proportional to the movement velocity of the nano-Fe3O4 particles.}},
  articleno    = {{104036}},
  author       = {{Jiao, Dengwu and Lesage, Karel and Yardimci, Mert Yücel and El Cheikh, Khadija and Shi, Caijun and De Schutter, Geert}},
  issn         = {{0958-9465}},
  journal      = {{CEMENT & CONCRETE COMPOSITES}},
  keywords     = {{Cement paste,Structural build-up,Particle size,Magnetic field,Nano-Fe3O4,RHEOLOGY CONTROL,CONCRETE,MICROSTRUCTURE,NANOPARTICLES,THIXOTROPY,MODEL}},
  language     = {{eng}},
  pages        = {{10}},
  title        = {{Structural evolution of cement paste with nano-Fe3O4 under magnetic field : effect of concentration and particle size of nano-Fe3O4}},
  url          = {{http://dx.doi.org/10.1016/j.cemconcomp.2021.104036}},
  volume       = {{120}},
  year         = {{2021}},
}

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